CN221046306U - High efficiency dynamic powder classifier - Google Patents

Abstract

The utility model belongs to the technical field of powder grading equipment, and specifically relates to a high-efficiency dynamic powder classifier, comprising a shell, a driving device is installed on the top of the shell, a rotating device and a bulk material disc are arranged inside the shell, and the driving device is connected to the rotating device and the bulk material disc through a main shaft transmission; an ash hopper is arranged above the bulk material disc, a discharge pipe is arranged below the bulk material disc, and the end of the discharge pipe is a medium and coarse material outlet; a coarse material outlet is arranged at the bottom of the shell, a feeding port is arranged on the top surface of the shell, an inner cone is arranged below the feeding port, an air outlet is arranged on the upper part of the shell, and an air inlet is arranged at the lower part of the shell, and air flow enters the shell from the air inlet, driving the classified fine material to be discharged from the air outlet; the utility model drives the rotating device and the bulk material disc to scatter the input material for multiple times through the driving device, and grades the material through the ash hopper, and has strong powder grading processing capacity, fast grading speed, and high production efficiency, and at the same time, the material output and product accuracy can be controlled through the shutter air valve.

Description

High efficiency dynamic powder classifier

Technical Field

The utility model relates to a high-efficiency dynamic powder selecting machine, belonging to the technical field of powder grading equipment.

Background technique

Dynamic powder classifier is a kind of equipment that can break up the materials put into it and classify the powder materials by using the gravity of the materials and the wind energy provided by the fan. It is widely used in the fields of chemistry, food, medicine, ceramics, etc. However, the existing powder classifiers have the defects of low efficiency and poor ability to classify powder materials.

The Chinese utility model patent with the existing application number CN201921797675.8 discloses a new type of steel slag vertical mill powder classifier, including a powder classifier transmission device and an upper shell of the powder classifier, a bearing box is fixedly connected to the lower part of the powder classifier transmission device, a baffle device is fastened and connected to the inner side of the lower part of the upper shell of the powder classifier by bolts, a material retaining ring is fixedly connected to the outer side of the bottom of the upper shell of the powder classifier, an air guide plate device is bolted to the upper shell of the powder classifier through an upper support ring, the air guide plate device is fixedly connected to the lower end of the middle shell of the powder classifier through a lower support ring, an inner cone is fixedly connected to the bottom of the air guide plate device, a sealing ring is fixedly connected to the inner upper end of the inner shell of the powder classifier, and an annular steel plate is fixedly connected to the inner wall of the sealing ring; the utility model reduces the screen residue of the powder classifier in the actual production process, but there are still problems such as poor material classification ability.

Utility Model Content

In view of the above deficiencies in the prior art, the technical problem to be solved by the utility model is: to provide an efficient dynamic powder classifier that can break up materials multiple times, has strong powder classification processing ability, fast classification speed, high production efficiency, and controllable output and product precision.

The high-efficiency dynamic powder classifier described in the utility model comprises a shell, a driving device is installed on the top of the shell, a rotating device and a bulk material tray are arranged inside the shell, the driving device is connected to the rotating device and the bulk material tray through a main shaft transmission, and the rotating device and the bulk material tray can scatter the materials for multiple times; an ash hopper is arranged above the bulk material tray, and the ash hopper is used to classify the coarse material and the medium coarse material; a discharge pipe is arranged below the bulk material tray, and the end of the discharge pipe is a medium coarse material outlet; a coarse material outlet is arranged at the bottom of the shell, and the coarse material outlet is used to discharge the classified coarse material;

The top surface of the shell is provided with a feeding port for feeding materials, an inner cone is provided below the feeding port, an air outlet is provided at the top of the shell, and an air inlet is provided at the bottom of the shell. The airflow enters the shell from the air inlet, driving the classified fine materials to be discharged from the air outlet.

The technical solution of the utility model is to provide a high-efficiency dynamic powder classifier, which drives a rotary device and a bulk material disc to scatter the input materials for multiple times through a driving device, and classifies the materials through an ash hopper.

Preferably, the shell comprises an air outlet shell, an upper shell, a connecting shell and an air inlet shell from top to bottom; the air outlet is arranged on the air outlet shell, a cover plate is installed on the top of the air outlet shell, the feeding port is arranged on the cover plate, and the air inlet is arranged on the air inlet shell; a discharge cone is connected to the bottom of the air inlet shell, and the coarse material outlet is arranged at the bottom of the discharge cone.

Furthermore, the rotating device includes a rotor, the outer side of which is connected to moving blades, which are in a grid shape. The rotation of the main shaft can drive the moving blades to rotate, thereby impacting and breaking up the materials. The outer side of the moving blades is surrounded by stationary blades, which are fixed inside the upper shell. The moving blades and the stationary blades together surround a ring-shaped grading area.

Furthermore, the ash hopper comprises an inner ash hopper and an outer ash hopper, and a plurality of long openings are arranged in a circular array on the side wall of the inner ash hopper to allow materials to fall.

Preferably, a plurality of protrusions are provided on the bulk material tray, and the bulk material tray rotates synchronously with the main shaft.

Furthermore, the discharge pipe is provided with a guide cone, which is used to guide the classified coarse materials so that the coarse materials roll down to the side wall of the discharge cone and are finally discharged from the coarse material outlet at the bottom.

The number of the air outlets is four, the number of the air inlets is two, and a shutter air valve is installed on the air inlet on one side for adjusting the air volume, thereby controlling the output and accuracy of the graded materials.

Compared with the prior art, the utility model has the following beneficial effects:

The high-efficiency dynamic powder classifier described in the utility model drives the rotary device and the bulk material disc to scatter the input materials for multiple times through the driving device, and grades the materials through the ash hopper. It has strong powder grading processing ability, fast grading speed and high production efficiency. At the same time, the material output and product accuracy can be controlled by the shutter air valve.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 is a schematic diagram of the structure of the utility model;

FIG. 2 is a schematic diagram of the structure of the ash hopper.

In the figure: 1. driving device; 2. cover plate; 3. air outlet housing; 4. upper housing; 5. connecting housing; 6. air inlet housing; 7. shutter air valve; 8. discharge pipe; 9. guide cone; 10. bulk material tray; 11. main shaft; 12. inner ash hopper; 13. outer ash hopper; 14. rotor; 15. inner cone; 16. discharge cone; 17. annular grading area; 18. feeding port; 19. air outlet; 20. air inlet; 21. moving blades; 22. stationary blades; 23. coarse material outlet; 24. medium coarse material outlet; 25. long strip opening.

Detailed ways

The utility model is further described below in conjunction with specific embodiments.

However, the description of the present invention is merely an embodiment of structural and even functional description, and the scope of rights of the present invention is not limited by the embodiments described in the text.

For example, multiple embodiments may have multiple changes and multiple forms, and it should be understood that the scope of rights of the present utility model includes equivalents that can realize the technical idea.

As shown in Figures 1 and 2, this embodiment is implemented by the following technical scheme: it includes a shell, a driving device 1 is installed on the top of the shell, a rotating device and a bulk material tray 10 are arranged inside the shell, the driving device 1 is connected to the rotating device and the bulk material tray 10 through a main shaft 11, and the rotating device and the bulk material tray 10 can break up the material for many times; an ash hopper is arranged above the bulk material tray 10, and the ash hopper is used to classify coarse materials and medium coarse materials; a discharge pipe 8 is arranged below the bulk material tray 10, and the end of the discharge pipe 8 is a medium coarse material outlet 24; a coarse material outlet 23 is arranged at the bottom of the shell, and the coarse material outlet 23 is used to discharge the classified coarse materials; a feeding port 18 is arranged on the top surface of the shell, and materials are put into the feeding port 18, and an inner cone 15 is arranged below the feeding port 18; an air outlet 19 is arranged on the upper part of the shell, and an air inlet 20 is arranged on the lower part of the shell, and the airflow enters the shell from the air inlet 20, driving the classified fine materials to be discharged from the air outlet 19.

In this embodiment, the shell includes an air outlet shell 3, an upper shell 4, a connecting shell 5 and an air inlet shell 6 from top to bottom; the air outlet 19 is arranged on the air outlet shell 3, and a cover plate 2 is installed on the top of the air outlet shell 3, the feeding port 18 is arranged on the cover plate 2, and the air inlet 20 is arranged on the air inlet shell 6; the lower part of the air inlet shell 6 is connected to the discharge cone 16, and the coarse material outlet 23 is arranged at the bottom of the discharge cone 16; the rotating device includes a rotor 14, and the outer side of the rotor 14 is connected to moving blades 21, and the moving blades 21 are in a grid shape. The rotation of the main shaft 11 can drive the moving blades 21 to rotate, and the materials are impacted and dispersed; the outer side of the moving blades 21 is surrounded by stationary blades 22, and the stationary blades 22 are fixedly arranged inside the upper shell 4. The moving blades 21 and the stationary blades 22 jointly surround and form an annular grading area 17, and the materials are re-classified in the annular grading area 17. The ash hopper includes an inner ash hopper 12 and an outer ash hopper 13. The inner ash hopper 12 has a plurality of long openings 25 arranged in a circular array on the side wall to allow the material to fall. The bulk material tray 10 is provided with a plurality of protrusions to facilitate breaking up the material. The bulk material tray 10 rotates synchronously with the main shaft 11. The discharge pipe 8 is provided with a guide cone 9, which is used to guide the classified coarse material so that the coarse material rolls down to the side wall of the discharge cone 16 and is finally discharged from the coarse material outlet 23 at the bottom. There are four air outlets 19 and two air inlets 20. A shutter air valve 7 is installed on the air inlet 20 on one side to adjust the air volume, thereby controlling the output and accuracy of the classified materials.

The working principle of the utility model is as follows: the material enters the housing of the dynamic powder classifier from the feeding port 18, and the material passes through the inner cone 15 under the action of gravity, and then passes through the long strip opening 25 of the inner ash hopper 12 to fall to the bulk material plate 10 for preliminary breaking up, and is thrown out by the bulk material plate 10, and the coarse material falls from the gap between the housing and the discharge pipe 8 to the discharge cone 16 under the action of gravity, and is finally discharged from the coarse material outlet 23; at the same time, the airflow enters the housing of the powder classifier from the air inlet 20, blows up the finer materials scattered from the bulk material plate 10, and the materials are carried to the high-speed rotating rotor 14 by the airflow, and after passing through the stationary blades 22, they are broken up again by the moving blades 21, and the materials are divided into fine materials and medium coarse materials, and the medium coarse materials gradually fall in the annular grading area 17, slide along the inner wall of the outer ash hopper 13 into the discharge pipe 8, and are finally discharged from the medium coarse material outlet 24, and the fine materials pass through the moving blades 21 and are discharged through the air outlet 19 with the airflow.

Of course, the above contents are only preferred embodiments of the present invention and cannot be considered to limit the scope of the embodiments of the present invention. The present invention is not limited to the above examples, and any equivalent changes and improvements made by ordinary technicians in the technical field within the essential scope of the present invention should be included in the patent coverage of the present invention.

Claims (7)

1. The high-efficiency dynamic powder selecting machine comprises a shell, and is characterized in that a driving device (1) is arranged at the top of the shell, a rotating device and a bulk material disc (10) are arranged in the shell, and the driving device is in transmission connection with the rotating device and the bulk material disc (10) through a main shaft (11); an ash bucket for classifying coarse materials and medium coarse materials is arranged above the bulk material tray (10), a blanking pipe (8) is arranged below the bulk material tray (10), and a medium coarse material outlet (24) is arranged at the tail end of the blanking pipe (8); the bottom of the shell is provided with a coarse material outlet (23); the top surface of the shell is provided with a feeding hole (18) for inputting materials, an inner cone (15) is arranged below the feeding hole (18), an air outlet (19) is arranged on the upper portion of the shell, an air inlet (20) is arranged on the lower portion of the shell, and air flow enters the shell from the air inlet (20) to drive fine materials to be discharged from the air outlet (19).

2. The efficient dynamic powder concentrator according to claim 1, wherein the housing comprises an air outlet housing (3), an upper housing (4), a connecting housing (5) and an air inlet housing (6) from top to bottom in sequence; the air outlet (19) is arranged on the air outlet shell (3), the cover plate (2) is arranged at the top of the air outlet shell (3), the feeding port (18) is arranged on the cover plate (2), and the air inlet (20) is arranged on the air inlet shell (6); the discharging cone (16) is connected below the air inlet shell (6), and the coarse material outlet (23) is arranged at the bottom of the discharging cone (16).

3. The efficient dynamic powder concentrator as claimed in claim 1, wherein the rotating device comprises a rotor (14), the rotor (14) is connected with moving blades (21) at the outer side, the moving blades (21) are in a grid shape, and the main shaft (11) rotates to drive the moving blades (21) to rotate; the outside of the moving blade (21) is surrounded by a stationary blade (22), the stationary blade (22) is fixedly arranged in the upper shell (4), and the moving blade (21) and the stationary blade (22) are jointly surrounded to form an annular grading area (17).

4. The efficient dynamic powder concentrator as claimed in claim 1, wherein the ash bucket comprises an inner ash bucket (12) and an outer ash bucket (13), and a plurality of strip openings (25) are formed in a circumferential array on the side wall of the inner ash bucket (12).

5. The efficient dynamic powder concentrator as claimed in claim 1, wherein the bulk material tray (10) is provided with a plurality of protrusions, and the bulk material tray (10) rotates synchronously with the main shaft (11).

6. The efficient dynamic powder concentrator as claimed in claim 1, wherein the blanking pipe (8) is provided with a diversion cone (9) for diversion of the classified coarse material.

7. The efficient dynamic powder concentrator according to claim 2, wherein the number of the air outlets (19) is four, the number of the air inlets (20) is two, and a shutter air valve (7) for adjusting the air quantity is arranged on the air inlet (20) at one side.