CN210022321U

CN210022321U - New material sample smashes and uses whirlwind mill

Info

Publication number: CN210022321U
Application number: CN201821678480.7U
Authority: CN
Inventors: 黄珲
Original assignee: Guang'an Front Zone Xiao Xiang Township Primary School
Current assignee: Guang'an Front Zone Xiao Xiang Township Primary School
Priority date: 2018-10-16
Filing date: 2018-10-16
Publication date: 2020-02-07
Anticipated expiration: 2028-10-16

Abstract

The utility model relates to a new material sample smashes and uses whirlwind mill, including the whirlwind mill body, be equipped with circular grinding chamber in the whirlwind mill body, be equipped with the screening mouth on the grinding chamber lateral wall, be equipped with the screen cloth on the screening mouth, be equipped with grinding ring in the grinding chamber, be equipped with the impeller in the grinding ring, whirlwind mill body top is equipped with the feed inlet, grinding chamber one side is equipped with the discharge gate, is equipped with discharging channel between discharge gate and the screen cloth, discharging channel and grinding chamber are located the coplanar, discharging channel's central line is located along grinding the chamber radius direction, and the discharging channel middle part is equipped with 130 turnings. The discharge channel and the grinding cavity are positioned in the same plane, and the central line of the discharge channel is positioned in the direction along the radius of the grinding cavity, so that the filter screen at the screening hole is prevented from being blocked by a sample; meanwhile, the 130-degree corner is arranged in the middle of the discharge channel, so that a certain pressure intensity can be kept in the grinding cavity, and the excessive reduction of the pressure intensity of the airflow in the grinding cavity due to the fact that the airflow in the grinding cavity flows out too fast is avoided.

Description

New material sample smashes and uses whirlwind mill

Technical Field

The utility model relates to a whirlwind grinds technical field, concretely relates to new material sample smashes and uses whirlwind mill.

Background

The new material refers to some newly developed or under development material with super-group performance, and has more excellent performance than the traditional material. In recent years, new materials are more and more valued, and the state also pays attention to the development of new material industry. When analyzing a new material sample, it is often necessary to pulverize the new material sample. The current crushing device commonly used in laboratories is mainly a cyclone mill.

Cyclone mill is when the operation, the cyclone mill impeller is high-speed rotatory, can produce very big air current and atmospheric pressure this moment in grinding the intracavity portion, get into from the feed inlet when the sample, on the one hand high-speed rotatory impeller and blade can strike the sample, thereby make it break, on the other hand the sample also can be driven by the air current simultaneously, thereby strike to grinding ring with very high speed, sample and grinding ring produce great mutual motion afterwards, thereby produce the friction, smash the sample once more, the sample is constantly ground for a short time at this in-process, when the diameter of sample granule is less than the diameter on the screen cloth, the sample just is blown out from grinding the intracavity by the high-speed air current, discharge from the discharge gate through discharging channel, but the discharging channel structure of present design, block up the sample easily, and sample grinding rate is slower.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model discloses structure and grinding ring structure to discharging channel optimize to a filter screen that provides a sieve mouth department is difficult for blockking up the sample, smashes the higher new material sample of efficiency and smashes and use whirlwind mill.

The utility model adopts the technical proposal that: a cyclone mill for crushing new material samples comprises a cyclone mill body, wherein a circular grinding cavity is arranged in the cyclone mill body, a screening opening is formed in the side wall of the grinding cavity, a screen mesh matched with the screening opening is arranged on the screening opening, a grinding ring is arranged in the grinding cavity, an impeller is arranged in the grinding ring, a plurality of blades are arranged on the impeller, a motor assembly for driving the impeller to rotate is arranged in the cyclone mill body, a feeding opening is formed in the top of the cyclone mill body, a discharging opening is formed in one side of the grinding cavity, a discharging channel is arranged between the discharging opening and the screen mesh, the discharging channel and the grinding cavity are located in the same plane, the central line of the discharging channel is located in the radial direction of the grinding cavity, a corner is arranged in the middle of the discharging channel, and the angle.

The cyclone mill for crushing the new material sample is further described in the specification that the inner wall surface of the grinding ring is a rough surface.

The cyclone mill for crushing the new material sample is further described in that a tungsten carbide particle layer is sprayed on the inner wall of the grinding ring.

The cyclone mill for crushing the new material sample is further described as having a knurled pattern on the inner wall of the grinding ring.

The cyclone mill for crushing the new material sample is further described as the blades are of a sheet structure, and the number of the blades is 6.

The utility model has the advantages that: 1. the discharge channel and the grinding cavity are positioned in the same plane, the central line of the discharge channel is positioned in the direction along the radius of the grinding cavity, when the structure is adopted, a sample does high-speed rotation motion in the grinding cavity along with the impeller and is thrown to the grinding ring of the grinding cavity under the action of the impeller, the motion direction of the sample rotating at high speed is tangent to the grinding ring, and when the sample passes through the screening opening of the grinding cavity, the motion direction of the sample is also tangent to the screening opening; the discharge port channel is arranged in the radial direction of the grinding cavity, a sample which can pass through the screen can enter the discharge channel through the screening port and be discharged from the discharge port, while a sample which can not pass through the screen can continue to move in the tangential direction along the surface of the screen, and can easily enter the grinding cavity for continuous grinding operation, so that the situation that the filter screen cannot be blocked due to the fact that the sample which can not pass through the screen cannot leave the filter screen at the screening port in time can be prevented; meanwhile, a 130-degree corner is arranged in the middle of the discharge channel, so that a certain pressure intensity can be kept in the grinding cavity, and the influence on the crushing of a sample caused by too much reduced pressure intensity of airflow in the grinding cavity due to too fast outflow of the airflow in the grinding cavity is avoided; 2. the inner wall of the grinding ring is roughened, so that the grinding speed of a sample can be increased, and the grinding quality of the sample is enhanced, so that the grinding efficiency of the cyclone mill is improved.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

FIG. 2 is a schematic view of a connection structure of an air duct and a polishing ring.

In the figure: 1. a cyclone mill body; 2. a grinding chamber; 3. screening a screen; 4. a grinding ring; 5. an impeller; 6. a blade; 7. a motor assembly; 8. a feed inlet; 9. a discharge port; 10. a discharge channel;

β, angle of the corner.

Detailed Description

The embodiments of the present invention will be further explained with reference to the drawings.

As shown in fig. 1, the cyclone mill for pulverizing a new material sample provided in this embodiment includes a cyclone mill body 1, a circular grinding chamber 2 is disposed in the cyclone mill body 1, a screening opening is disposed on a side wall of the grinding chamber 2, a screen 3 adapted to the screening opening is disposed on the screening opening, a grinding ring 4 is disposed in the grinding chamber 2, an impeller 5 is disposed in the grinding ring 4, a plurality of blades 6 are disposed on the impeller 5, a motor assembly 7 for driving the impeller 5 to rotate is disposed in the cyclone mill body 1, a feed inlet 8 is disposed at a top of the cyclone mill body 1, a discharge outlet 9 is disposed at one side of the grinding chamber 2, a discharge channel 10 is disposed between the discharge outlet 9 and the screen 3, the discharge channel and the grinding chamber are located in the same plane, and a center line of the discharge channel is located along a radius direction of the grinding chamber. When the cyclone mill is in operation, the impeller 5 of the cyclone mill rotates at a high speed, and at the moment, a large airflow and air pressure can be generated in the grinding cavity 2, when a sample enters from the feed inlet 8, on one hand, the impeller 5 and the blades 6 rotating at a high speed can impact the sample, so that the sample is broken, on the other hand, the sample can be driven by the airflow at the same time, so that the sample collides against the grinding ring 4 at a high speed, and then the sample and the grinding ring generate large mutual movement, so that friction is generated, the sample is crushed again, the sample is continuously ground small in the process, and when the diameter of sample particles is smaller than that of the screen 3, the sample is blown out of the grinding cavity 2 by the high-speed airflow in the grinding cavity, and is discharged from the discharge port 9. The discharge channel and the grinding cavity are positioned in the same plane, the central line of the discharge channel is positioned in the direction along the radius of the grinding cavity, when the structure is adopted, a sample does high-speed rotation motion in the grinding cavity along with the impeller and is thrown to the grinding ring of the grinding cavity under the action of the impeller, the motion direction of the sample rotating at high speed is tangent to the grinding ring, and when the sample passes through the screening opening of the grinding cavity, the motion direction of the sample is also tangent to the screening opening; the discharge port channel is arranged in the radius direction of the grinding cavity, a sample which can pass through the screen can enter the discharge channel through the screening port under the action of air flow and is discharged from the discharge port, the sample which can not pass through the screen can continue to move in the tangential direction along the surface of the screen, and can easily enter the grinding cavity to carry out continuous grinding operation, so that the situation that the filter screen cannot be blocked due to the fact that the sample can not pass through the screen cannot leave the filter screen at the screening port in time can be prevented.

As shown in fig. 2, in this embodiment, a corner is disposed in the middle of the discharging channel 10, the angle β of the corner is 130 °, and a 130 ° corner is disposed in the middle of the discharging channel 10, so that a certain pressure is maintained in the grinding chamber 2, and the pressure of the air flow in the grinding chamber 2 is not reduced too much due to the too fast outflow of the air flow in the grinding chamber 2, thereby affecting the grinding of the sample and reducing the grinding rate of the sample.

Because when the sample is smashed in the grinding cavity 2, on the one hand, the impeller 5 and the blade 6 rotating at a high speed can impact the sample, thereby breaking the sample, on the other hand, the sample can also be driven by the airflow, thereby impacting the grinding ring 4 at a high speed, and then the sample and the grinding ring 4 generate a large mutual movement, thereby generating friction, and smashing the sample again, so in order to improve the friction smashing capability of the grinding ring 4 to the sample, thereby improving the whole smashing effect of the device, preferably, the inner wall surface of the grinding ring 4 can be set to be a rough surface. Specifically, a tungsten carbide particle layer can be sprayed on the inner wall of the grinding ring 4, and the grinding capacity of the grinding ring 4 to a sample is improved through the arranged tungsten carbide particle layer; due to the high process and cost required for spraying the tungsten carbide particles, the inner wall of the grinding ring 4 may also be provided with the knurled patterns, so as to also increase the sample crushing capability of the grinding ring 4, and of course, the two ways of increasing the roughness of the inner wall of the grinding ring 4 are preferred, and other structures may also be adopted, which are not illustrated herein.

On the other hand, in order to increase the sample crushing capacity of the blades 6 on the impeller 5, long-term tests show that when the blades 6 are arranged in a sheet-like structure and the number of the blades 6 is 6, the sample crushing capacity is best, the cost is lowest, and the structure is simplest, but the method is also a preferable mode.

The present invention is not limited to the above-mentioned examples, and various modifications and changes which can be made by those skilled in the art without creative efforts are protected by the present patent within the scope defined by the claims of the present invention.

Claims

1. The utility model provides a new material sample smashes and uses whirlwind mill, includes the whirlwind mill body, be equipped with a circular grinding chamber in the whirlwind mill body, be equipped with a screening opening on the grinding chamber lateral wall, be equipped with the screen cloth of looks adaptation on the screening opening, be equipped with a grinding ring in the grinding chamber, be equipped with the impeller in the grinding ring, be equipped with a plurality of blades on the impeller, be equipped with the motor element that drives impeller pivoted in the whirlwind mill body, whirlwind mill body top is equipped with the feed inlet, grinding chamber one side is equipped with the discharge gate, be equipped with discharging channel between discharge gate and the screen cloth, its characterized in that: the discharging channel and the grinding cavity are located in the same plane, the central line of the discharging channel is located in the radius direction of the grinding cavity, a corner is arranged in the middle of the discharging channel, and the angle of the corner is 130 degrees.

2. The cyclone mill for pulverizing new material samples according to claim 1, wherein: the inner wall surface of the grinding ring is a rough surface.

3. The cyclone mill for pulverizing new material samples according to claim 2, wherein: and a tungsten carbide particle layer is sprayed on the inner wall of the grinding ring.

4. The cyclone mill for pulverizing new material samples according to claim 2, wherein: and the inner wall of the grinding ring is provided with reticulate patterns and knurls.

5. The cyclone mill for pulverizing new material samples according to claim 1, wherein: the blade is the lamellar structure, the blade is 6.