CN115069354A

CN115069354A - Vertical ultrafine grinder

Info

Publication number: CN115069354A
Application number: CN202210681418.8A
Authority: CN
Inventors: 林溪; 马凤德; 陈杰
Original assignee: Jiangsu Bangding Technology Co ltd
Current assignee: Jiangsu Bangding Technology Co ltd
Priority date: 2022-06-15
Filing date: 2022-06-15
Publication date: 2022-09-20
Anticipated expiration: 2042-06-15
Also published as: CN115069354B

Abstract

The invention discloses a vertical ultrafine grinder, which relates to the technical field of grinders and comprises the following components: a housing; the convex cover is arranged above the shell; the top cover shell is arranged above the convex cover; the discharge pipe is communicated with and arranged on the outer side of the top cover shell; the grading wheel is arranged inside the shell and is positioned below the top cover shell; the crushing disc is arranged in the shell and is positioned below the grading wheel; reposition of redundant personnel cover, reposition of redundant personnel cover are established between protruding type cover and crushing dish, and reposition of redundant personnel cover includes: the outer wall of the fixed cylinder is connected with the inner wall of the shell; the conical cover is arranged inside the fixed cylinder, and a gap is reserved between the outer wall of the conical cover and the inner wall of the fixed cylinder; the structure of keeping out the wind sets up between crushing dish and discharging pipe to increase the windage at discharging pipe tip. The invention solves the technical problem that the air speed of the side of the existing crusher close to the discharge port is not uniform, so that the crushing uniformity of materials is influenced.

Description

Vertical ultrafine grinder

Technical Field

The invention relates to the technical field of crushers, in particular to a vertical ultrafine crusher.

Background

In the daily crushing process, the coarsely crushed materials enter the crushing chamber from the feeder to be crushed. Due to the high-speed rotation of the crushing disc, under the action of centrifugal force, materials are crushed by the impact of the hammer cutter arranged on the crushing disc and are rotated to the peripheral gear ring at a very high speed, and because the clearance between the hammer cutter and the gear ring is very small, the airflow between the hammer cutter and the gear ring is instantaneously changed due to the change of the tooth shape. The material receives alternating stress in this clearance, is further accomplished under this repeated action and smashes, and at kibbling in-process, the material can receive the influence because of the wind speed, and the wind speed is inhomogeneous can lead to material crushing's not even enough to lead to the energy consumption to increase, smash consequences such as quality variation.

Disclosure of Invention

The invention aims to provide a vertical ultrafine grinder, which solves the technical problem that the air speed of the grinder close to a discharging port side is not uniform, so that the grinding uniformity of materials is influenced in the prior art.

The embodiment of the application discloses vertical superfine rubbing crusher includes:

a housing;

the convex cover is arranged above the shell;

the top cover shell is arranged above the convex cover;

the discharge pipe is communicated with and arranged on the outer side of the top cover shell;

the grading wheel is arranged inside the shell and is positioned below the top cover shell;

the crushing disc is arranged inside the shell and is positioned below the grading wheel;

shunt cover, shunt cover sets up in protruding type cover with between the crushing dish, shunt cover includes:

the outer wall of the fixed cylinder is connected with the inner wall of the shell;

the conical cover is arranged inside the fixed cylinder, and a gap is reserved between the outer wall of the conical cover and the inner wall of the fixed cylinder;

the structure of keeping out the wind, set up in smash the dish with between the discharging pipe, in order to increase the windage at discharging pipe tip.

The embodiment of the application adds the structure of keeping out the wind for the wind speed of the tip department of adjustment discharging pipe to this homogeneity of guaranteeing the material crushing has reduced the wearing and tearing of relevant material simultaneously.

On the basis of the technical scheme, the embodiment of the application can be further improved as follows:

furthermore, the wind shielding structure is arranged at the upper end of the conical cover, and the wind shielding structure has the beneficial effects that wind shielding can be realized through the corresponding structure, so that the reduction of the wind speed is completed, and the uniformity of material crushing is improved.

Further, the wind shielding structure is an upper end structure of the conical cover, and one side, close to the discharge pipe, of the upper end of the conical cover is higher than one side, far away from the discharge pipe, of the upper end of the conical cover.

Furthermore, the structure of keeping out the wind is the upper end structure of toper cover, the upper end of toper cover is the slope structure of taking the slope, the upper end of toper cover is close to one side of discharging pipe is the top of a slope, keeps away from one side of discharging pipe is the slope bottom.

Furthermore, the structure of keeping out the wind is the deep bead, the upper end of deep bead is a slope structure of taking the slope, just the deep bead install in the upper end of toper cover, the deep bead is from being close to the one end of discharging pipe slopes down gradually to keeping away from the one end of discharging pipe.

Furthermore, the wind shield is arranged to be annular and matched with the conical cover, and the lower end of the wind shield is correspondingly matched with the upper end of the conical cover.

Furthermore, the wind shielding structure is arranged at the lower end of the convex cover, and the wind shielding structure has the beneficial effects that wind shielding can be realized through the corresponding structure, so that the reduction of the wind speed is completed, and the uniformity of material crushing is improved.

Further, the wind shielding structure is a lower end structure of the convex cover, and one side, close to the discharge pipe, of the lower end of the convex cover is lower than one side, far away from the discharge pipe.

Furthermore, the structure of keeping out the wind is the lower extreme structure of protruding type cover, the lower extreme of protruding type cover is the slope structure of taking the slope, the upper end of protruding type cover is close to one side of discharging pipe is the top of a slope, keeps away from one side of discharging pipe is the slope bottom.

Furthermore, the structure of keeping out the wind is the choke plate, the choke plate is the slope structure of taking the slope, just the choke plate install in the lower extreme of protruding type cover, the choke plate is from being close to the one end of discharging pipe upwards slope gradually to keeping away from the one end of discharging pipe.

One or more technical solutions provided by the present application have at least the following technical effects or advantages:

compared with the traditional ultrafine grinder in the process of grinding materials, the novel ultrafine grinder disclosed by the invention has the advantages that the wind speed distribution in the grinding chamber is more uniform, the grinding efficiency is higher, large-particle materials are more difficult to enter the grading wheel, the grading efficiency is higher, the fluidity of the ground materials in the grinding chamber is stronger, the qualified materials are discharged more rapidly, the secondary grinding cycle of unqualified materials is shorter, the efficiency is higher, and the yield of the qualified materials meeting the requirements in the same time is higher.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic structural view of a vertical ultrafine pulverizer according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of the flow diversion cover of FIG. 1;

FIG. 3 is a front view of the shunt shield of FIG. 1;

FIG. 4 is a front view of the convex shell of FIG. 1;

FIG. 5 is a schematic view of the convex shell of FIG. 1;

FIG. 6 is a simulation diagram of wind speed of a conventional pulverizer;

FIG. 7 is a graph illustrating a simulation of the wind velocity of the pulverizer of one embodiment of the present invention;

FIG. 8 is a graph showing a simulation of the wind speed of a pulverizer according to still another embodiment of the present invention;

reference numerals:

1-a shell; 2-a convex cover; 3-a top cover shell; 4-a discharge pipe; 5-a grading wheel; 6-a crushing disc; 7-a flow-dividing cover; 8-a wind shielding structure;

201-cover body; 202-a connecting portion;

701-a fixed cylinder; 702-a conical cover;

801-wind deflector; 802-choke plate.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the invention pertains.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In order to better understand the technical solutions, the technical solutions will be described in detail below with reference to the drawings and the detailed description.

Example (b):

the crushing simulation of the existing crusher is carried out, a simulation graph shown in fig. 6 is obtained, and it is found that the wind speed in the inner part close to the discharge port is obviously increased relative to the wind speed in other areas, (the change of the color represents the size of the wind speed, the dark red color represents the highest wind speed, the sequentially lighter color represents that the wind is gradually reduced, and the blue color represents the lowest wind speed), so that the grading wheel cannot realize better grading under the condition of the wind speed, and the material on the opposite side with higher wind speed is crushed unevenly.

Therefore, as shown in fig. 1 to 5, the embodiment of the application discloses a vertical ultrafine grinder, wherein the convex cover and the diversion cover are designed to adjust the air speed of the discharged material, so that the grinding effect is improved;

the concrete structure comprises:

the crusher comprises a shell 1, wherein the shell 1 is a shell of the existing crusher, an accessory cavity is arranged in the shell, and the shell is used for realizing subsequent crushing and other functions after relevant accessories are assembled;

the convex cover 2 is arranged above the shell 1, and the bottom end of the convex cover 2 is rotatably connected with the subsequent grading wheel;

the top cover shell 3 is arranged above the convex cover 2, the top cover shell 3 is used for protecting relevant parts inside the top cover shell, and meanwhile, materials can enter the top cover shell 3 after being crushed;

the discharge pipe 4 is communicated with the outer side of the top cover shell 3, and the discharge pipe 4 is convenient for discharging materials after being crushed;

the grading wheel 5 is arranged inside the shell 1, the grading wheel 5 is positioned below the top cover shell 3, and the grading wheel 5 is used for crushing and grading materials;

the crushing disc 6 is arranged in the shell 1, the crushing disc 6 is positioned below the grading wheel 5, the crushing disc 6 is used for crushing materials and is arranged at the output shaft end of a driving device, and the driving device is arranged in the shell 1 and drives the crushing disc 6 to rotate so as to crush the materials;

reposition of redundant personnel cover 7, reposition of redundant personnel cover 7 set up in convex cover 2 with between the crushing disk 6, reposition of redundant personnel cover 7 includes:

the outer wall of the fixed cylinder 701 is connected with the inner wall of the shell 1;

the conical cover 702 is arranged inside the fixed cylinder 701, and a gap is reserved between the outer wall of the conical cover 702 and the inner wall of the fixed cylinder 701; the flow dividing cover is used for improving an air channel, so that materials which are not effectively crushed are prevented from entering the grading wheel for screening too quickly, and the service life of related parts is prolonged;

a wind shielding structure 8 arranged between the crushing disk 6 and the discharge pipe 4 to increase wind resistance at the end of the discharge pipe 4; simulations of the known pulverizer show that the wind speed at the end side close to the tapping pipe 4 is comparatively high, which leads to an uneven wind speed during the pulverizing process, so that the wind resistance is increased and the wind speed at the end of the tapping pipe 4 is improved by providing a corresponding wind shielding structure at the end of the tapping pipe 4 (the end of the tapping pipe 4 in the present application refers to the end of the tapping pipe 4 at which the material is fed).

In one embodiment, the wind shielding structure 8 is disposed at the upper end of the conical cover 702, so as to increase the wind blowing distance, and simultaneously complete a certain blocking, reduce the wind speed, and ensure the uniformity of the wind speed inside. After the application simulates the pulverizer of the scheme, the simulation graph of fig. 7 is obtained, and the simulation graph shows that the wind speed on the side close to the discharging port in the pulverizing cavity is higher than the wind speed uniformity at other positions, so that the pulverizing uniformity is better.

Wherein, wind structure 8 does the upper end structure of toper cover 702, the upper end of toper cover 702 is close to one side of discharging pipe 4 is higher than keeps away from one side of discharging pipe 4, can be close to in the upper end of toper cover 702 one side of discharging pipe 4 sets up the arch or the baffle or the blend stop that upwards extends, and the realization reduces the wind speed can. The structure 8 that keeps out the wind can also be improved to this, be about to the upper end design of conical cover is the slope structure of taking the slope, only needs to guarantee that the upper end of conical cover 702 is close to one side of discharging pipe 4 is the top of a slope, keeps away from one side of discharging pipe 4 is the bottom of a slope can.

In another embodiment, the wind shielding structure 8 is a wind shielding plate 801, the upper end of the wind shielding plate 801 is an inclined structure with a slope, and the wind shielding plate 801 is installed at the upper end of the conical cover 702, and the wind shielding plate 801 gradually inclines downwards from one end close to the discharge pipe 4 to one end far away from the discharge pipe 4; the wind shield 801 is an extra component and is mounted above the conical cover 702 in a bolt or welding mode, the specific structure of the wind shield 801 is annular and matched with the conical cover, and the lower end of the wind shield 801 is correspondingly matched with the upper end of the conical cover 702.

In another embodiment, the wind shielding structure 8 is disposed at the lower end of the convex cover 2, and the wind shielding structure 8 is added at the lower end of the convex cover 2 to increase the wind blowing distance and reduce the wind speed. After the application simulates the pulverizer of the scheme, the simulation graph of fig. 8 is obtained, and the wind speed in the pulverizing cavity is more uniform, so that the pulverizing uniformity is better.

Wherein, the convex cover 2 comprises a cover body 201 and a connecting part 202, the connecting part 202 is arranged below the cover body 201, the connecting part 202 and the classifying wheel 5 are mutually matched, so that the stable rotation of the subsequent classifying wheel 5 is facilitated, and the wind shielding structure 8 is arranged below the connecting part 202.

In one embodiment, the wind-shielding structure 8 is the lower end structure of the convex cover 2, i.e. the wind-shielding structure 8 is the lower end structure of the connecting portion 202, the lower end of the connecting portion 202 is lower on the side close to the discharge pipe 4 than on the side away from the discharge pipe 4, i.e. the lower end of the connecting portion 202 only needs to protrude downward on the side close to the discharge pipe 4, and the wind-shielding structure 8 itself may not be a complete ring.

In an embodiment, the wind shielding structure 8 is a lower end structure of the convex cover 2, and similarly, the wind shielding structure 8 is a lower end structure of the connecting portion 202, the lower end of the connecting portion 202 is an inclined structure with a slope, a side of the upper end of the connecting portion 202 close to the discharging pipe is a top slope, and a side of the upper end of the connecting portion 202 far away from the discharging pipe 4 is a bottom slope; the difference from the above is that the lower end of the connecting portion 202 is a complete ring shape.

In an embodiment, the wind shielding structure 801 is a choke plate 802, the choke plate 802 is an inclined structure with a slope, the choke plate 802 is installed at the lower end of the convex cover 2, that is, at the lower end of the connecting portion 202, the choke plate 802 is inclined upward gradually from the end close to the discharge pipe 4 to the end away from the discharge pipe 4, during specific assembly, the choke plate 802 is sleeved on the outer side of the classifying wheel 3, when wind close to one side of the discharge pipe 4 needs to enter the classifying wheel 5 and the discharge pipe 4, a larger wind supply distance is increased, and the wind speed is blocked to a certain extent, so that the wind speed of the supplied wind is changed, and uniformity is improved.

In one embodiment, the wind shielding structure 8 is divided into two parts, one part is disposed at the upper end of the conical cover 702, the other part is disposed at the lower end of the convex cover 2, and the specific structure of the wind shielding structure 8 itself is the same as that described above.

In the description of the present invention, numerous specific details are set forth. However, it is understood that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.

In the description of the specification, reference to the description of "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being covered by the appended claims and their equivalents.

Claims

1. A vertical ultrafine grinder, comprising:

a housing;

the convex cover is arranged above the shell;

the top cover shell is arranged above the convex cover;

2. The vertical micronizer of claim 1, wherein said wind shield is provided at the upper end of said conical hood.

3. The vertical ultrafine pulverizer according to claim 1, wherein the wind shielding structure is an upper end structure of the conical hood, and a side of an upper end of the conical hood near the discharge pipe is higher than a side thereof far from the discharge pipe.

4. The vertical ultrafine pulverizer according to claim 1, wherein the wind shielding structure is an upper end structure of the conical cover, the upper end of the conical cover is an inclined structure with a slope, a top slope is formed on a side of the upper end of the conical cover close to the discharge pipe, and a bottom slope is formed on a side of the upper end of the conical cover far away from the discharge pipe.

5. The vertical ultrafine pulverizer according to claim 1, wherein the wind shielding structure is a wind shielding plate, an upper end of the wind shielding plate is an inclined structure with a slope, the wind shielding plate is mounted on an upper end of the conical cover, and the wind shielding plate is gradually inclined downwards from one end close to the discharge pipe to one end far away from the discharge pipe.

6. The vertical ultrafine grinder according to claim 5, wherein the wind shield is provided in a ring shape to fit with the tapered cover, and a lower end of the wind shield is correspondingly fitted with an upper end of the tapered cover.

7. The vertical micronizer according to claim 1, characterized in that said wind-shielding structure is provided at the lower end of said convex hood.

8. The vertical ultrafine pulverizer according to claim 7, wherein the wind shielding structure is a lower end structure of the convex hood, and a side of a lower end of the convex hood close to the discharge pipe is lower than a side far from the discharge pipe.

9. The vertical ultrafine pulverizer according to claim 7, wherein the wind shielding structure is a lower end structure of the convex cover, a lower end of the convex cover is an inclined structure with a slope, a top slope is formed on a side of an upper end of the convex cover close to the discharge pipe, and a bottom slope is formed on a side of the upper end of the convex cover away from the discharge pipe.

10. The vertical ultrafine pulverizer according to claim 7, wherein the wind shielding structure is a choke plate, the choke plate is an inclined structure with a slope, and the choke plate is installed at a lower end of the convex cover, and the choke plate is gradually inclined upward from an end close to the discharge pipe to an end away from the discharge pipe.