CN217774814U

CN217774814U - Air classifier

Info

Publication number: CN217774814U
Application number: CN202222042591.1U
Authority: CN
Inventors: 刘有为; 卢刚; 周蕾; 王凯; 杨天宇; 柴修安; 郭进松; 王国忠
Original assignee: Anhui Gerui New Material Technology Co ltd
Current assignee: Anhui Gerui New Material Technology Co ltd
Priority date: 2022-08-04
Filing date: 2022-08-04
Publication date: 2022-11-11
Anticipated expiration: 2032-08-04

Abstract

The application discloses an air current grader, relate to grader technical field, including the hierarchical jar body, hierarchical jar body upper end is equipped with the wheel of grading by driving motor drive, the wheel of grading is located inside the fine powder export, hierarchical jar of internal portion is equipped with the filter screen, the filter screen middle part is rotated and is connected with the transmission shaft, fixed end has cup jointed driven gear on the transmission shaft, be equipped with the driving gear on the driving motor output shaft, driving gear and driven gear intermeshing, there is the sliding plate under the transmission shaft through threaded connection, the sliding plate is personally submitted the annular with filter screen looks relative terminal and evenly is equipped with the guide bar, the sliding plate below is equipped with the deflector, sliding connection has the scraper blade on the deflector, the scraper blade is squarely locates the sliding plate outside. This application can be when the air classifier uses, can guarantee the stability in use of grader to the remaining impurity clearance in coarse powder exit.

Description

Air current grader

Technical Field

The utility model belongs to the technical field of the grader technique and specifically relates to an air classifier is related to.

Background

The air classifier is an air classifying device, and the classifier, a cyclone separator, a dust remover and an induced draft fan form a set of classifying system. The material moves to the classification area from a feeding port at the lower end of the classifier at a high speed along with ascending airflow under the suction action of a fan, under the action of strong centrifugal force generated by a classification turbine rotating at a high speed, the coarse and fine materials are separated, fine particles meeting the particle size requirement enter a cyclone separator or a dust remover through gaps of blades of the classification wheel to be collected, the speed of the fine particles carried by the coarse particles disappears after the fine particles collide with a wall, the coarse particles descend to a secondary air port along a cylinder wall, the coarse particles are separated through the strong elutriation action of secondary air, the fine particles ascend to the classification area for secondary classification, and the coarse particles descend to a discharge port to be discharged.

The discharge gate of air classifier in market often can block up the discharge gate because massive material, and the material of adhesion at the inside wall is difficult to be detached, has influenced air classifier's availability factor and effect. In this regard, we propose an air classifier.

SUMMERY OF THE UTILITY MODEL

In order to improve the above-mentioned problem, the utility model provides an air classifier.

The utility model provides an air classifier adopts following technical scheme: the utility model provides an air current grader, includes the classification jar body, the end is equipped with the middlings export under the classification jar body, middlings export top is equipped with raw materials entry and overgrate air import, classification jar body upper end is equipped with by driving motor driven classification wheel, inside the farine export was located to the classification wheel, the internal portion of classification jar is equipped with the filter screen, the filter screen middle part is rotated and is connected with the transmission shaft, the fixed driven gear that has cup jointed in transmission shaft upper end, be equipped with the driving gear on the driving motor output shaft, driving gear and driven gear intermeshing, there is the sliding plate tip under the transmission shaft through threaded connection, the sliding plate personally submits the annular with the filter screen looks remote site and evenly is equipped with the guide bar, the sliding plate below is equipped with the deflector, sliding connection has the scraper blade on the deflector plate, the scraper blade is the square sliding plate outside of locating.

Based on the technical characteristics: the inner side of a coarse powder outlet of the airflow classifier is uniformly provided with scrapers in an annular shape, and a driving element of each scraper is connected with a driving shaft of the classifying wheel; when driving motor's drive shaft rotated, can drive the driving gear and rotate, meshing effect through driving gear and driven gear, and then drive the transmission shaft and rotate, at transmission shaft pivoted in-process, the sliding plate is because the restriction of guide bar, it only can realize along transmission shaft central line up-and-down motion, and can not follow the transmission shaft rotation, and meanwhile, it follows the transmission shaft rotation to locate the epaxial deflector of transmission, and then make the scraper blade can enough realize rotating, can realize radial motion from inside to outside again, play the residual impurity clearance to the middlings exit of the classification jar body, the stability in use of grader has been ensured.

Optionally, the driven gear is arranged below the grading wheel, and the central line of the driven gear is collinear with the center of the grading tank body.

Based on the technical characteristics: through locating the central collineation of the hierarchical jar body with driven gear, can be at driven gear pivoted in-process, through the motion of other parts of driven gear drive to it can evenly strike off to the remaining impurity of the inside wall of the hierarchical jar body to drive the scraper blade.

Optionally, the deflector is annular and is located the transmission shaft outside, and the quantity that sets up of deflector equals with scraper blade quantity.

Based on the technical characteristics: through the setting of deflector, can play the scraper blade drive, and can play the guide effect to the radial motion of scraper blade.

Optionally, a guide groove is formed in the guide plate, and the scraper is movably connected in the guide groove.

Based on the technical characteristics: the guide groove can limit the radial movement range of the scraper, so that the scraper can move in a specific range.

Optionally, the guide plate is disposed below the sliding plate, and the guide plate and the sliding plate are parallel to each other.

Based on the technical characteristics: with the deflector setting in the sliding plate below, because at the rotation in-process of transmission shaft, the sliding plate only can realize moving along the axis direction of transmission shaft, and then it can be so that the scraper blade on the deflector not only can follow the transmission shaft and rotate, can promote the scraper blade motion from inside to outside moreover for the scraper blade contacts with the hierarchical jar body, thereby clears up the remaining impurity of the lateral wall of the hierarchical jar body fast.

Optionally, the guide bar is parallel to the transmission shaft, and the guide bar is annularly arranged outside the transmission shaft.

Based on the technical characteristics: the guide rod is fixedly arranged on the sliding plate, and the sliding plate can only move along the axis of the transmission shaft and cannot rotate along with the transmission shaft through the arrangement of the guide rod.

Optionally, the sliding plate and the guide plate are arranged below the filter screen, and the outer diameter of the filter screen is larger than that of the sliding plate.

Based on the technical characteristics: wherein, the setting of filter screen, except playing the impurity filtering action in the material, can also play the effect of supporting transmission shaft and guide bar.

Optionally, the sliding plate is in contact with the scraper, and the adjacent scrapers are arranged on the outer side of the sliding plate.

Based on the technical characteristics: wherein, the scraper blade is personally submitted the slope setting with the sliding plate relatively, and up-and-down motion through the sliding plate can make the scraper blade produce from inside to outside or outside-in's radial motion, through the motion of drive scraper blade, can make it be close to hierarchical jar of body inside wall gradually, progressively to remaining impurity clearance on hierarchical jar of body, when guaranteeing the high-efficient use of hierarchical jar of body, can avoid the degree of difficulty of disposable clearance again.

To sum up, the utility model discloses a following at least one beneficial effect:

the airflow classifier is characterized in that scraping plates are uniformly arranged on the inner side of a coarse powder outlet of the airflow classifier in an annular shape, and a driving element of each scraping plate is connected with a driving shaft of a classifying wheel; when driving motor's drive shaft rotated, can drive the driving gear and rotate, meshing effect through driving gear and driven gear, and then drive the transmission shaft and rotate, at transmission shaft pivoted in-process, the sliding plate is because the restriction of guide bar, it only can realize along transmission shaft central line up-and-down motion, and can not follow the transmission shaft rotation, and meanwhile, it follows the transmission shaft rotation to locate the epaxial deflector of transmission, and then make the scraper blade can enough realize rotating, can realize radial motion from inside to outside again, play the residual impurity clearance to the middlings exit of the classification jar body, the stability in use of grader has been ensured.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a partial main sectional view of the present invention;

fig. 3 is a schematic partial cross-sectional view of the present invention;

fig. 4 is a schematic view of the connection between the transmission shaft and the sliding seat of the present invention.

Description of the reference numerals:

1. grading the tank body; 2. a coarse powder outlet; 3. a secondary air inlet; 4. a fine powder outlet; 5. a raw material inlet; 6. a squeegee; 7. a sliding plate; 8. a guide bar; 9. a guide groove; 10. a driving gear; 11. a drive motor; 12. a filter screen; 13. a driven gear; 14. a drive shaft; 15. a guide plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clear and fully described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides an embodiment: the utility model provides an air classifier, this application is main to air classifier's discharge gate, often can block up the discharge gate because massive material, and the material of adhesion at the inside wall is good to be detached, has influenced air classifier's availability factor and the problem of effect and has improved. The scheme is as follows: including the hierarchical jar of body 1, the lower tip of the hierarchical jar of body 1 is equipped with

middlings export

2, 2 tops in the middlings export are equipped with raw materials entry 5 and

overgrate air import

3, 1 upper end of the hierarchical jar of body is equipped with by driving motor 11 driven classification wheel, the classification wheel is located inside 4 of fine powder exports, the internal portion of the hierarchical jar is equipped with filter screen 12, filter screen 12 middle part rotation is connected with transmission shaft 14, filter screen 12's setting, except playing the impurity filtering action to in the material, can also play the effect of supporting transmission shaft 14.

Furthermore, a driven gear 13 is fixedly sleeved at the upper end of the transmission shaft 14, and the driven gear 13 and the transmission shaft 14 are fixedly installed. During the rotation of the drive shaft 14, the driven gear 13 rotates. Wherein, be equipped with driving gear 10 on the driving motor 11 output shaft, driving gear 10 and driven gear 13 intermeshing, driven gear 13 locates the classifying wheel below, and driven gear 13 central line and classifying tank 1 center collineation. The driving motor 11 is a driving wheel of the grading wheel and is connected with the control switch through a lead.

Referring to fig. 3, a sliding plate 7 is connected to the lower end of a transmission shaft 14 through a screw thread, guide rods 8 are uniformly arranged in a ring shape on the end surface of the sliding plate 7 opposite to the filter screen 12, the guide rods 8 are parallel to the transmission shaft 14, and the guide rods 8 are arranged outside the transmission shaft 14 in a ring shape. The guide rod 8 is movably inserted into the filter screen 12, and the position of the guide rod 8 is limited by the filter screen 12, so that the sliding plate 7 can not rotate along the transmission shaft 14, but only can move along the axis of the transmission shaft 14.

Wherein, a guide plate 15 is arranged below the sliding plate 7, the guide plate 15 is annularly arranged outside the transmission shaft 14, and the number of the guide plate 15 is equal to the number of the scrapers 6. The guide plate 15 is connected with a scraping plate 6 in a sliding way, and the scraping plate 6 is arranged outside the sliding plate 7 in a square shape. The guide plate 15 is provided with a guide groove 9, and the scraper 6 is movably connected in the guide groove 9. The guide plate 15 is provided below the slide plate 7, and the guide plate 15 and the slide plate 7 are parallel to each other. With deflector 15 setting in sliding plate 7 below, because at the rotation in-process of transmission shaft 14, sliding plate 7 can only realize moving along the axis direction of transmission shaft 14, and then it can not only can follow transmission shaft 14 and rotate so that scraper blade 6 on deflector 15, can promote scraper blade 6 motion from inside to outside moreover for scraper blade 6 and the contact of the hierarchical jar body 1, thereby clear up the remaining impurity of the hierarchical jar body 1 lateral wall fast.

In this embodiment, the slide plate 7 and the guide plate 15 are provided below the filter screen 12, and the outer diameter of the filter screen 12 is larger than the outer diameter of the slide plate 7. The sliding plate 7 is contacted with the scrapers 6, and the adjacent scrapers 6 are arranged on the outer side of the sliding plate 7. Wherein, the scraper blade 6 is personally submitted the slope setting with the sliding plate 7 relatively, through the up-and-down motion of sliding plate 7, can make 6 radial motion that produce from inside to outside or outside-in of scraper blade, through the motion of drive scraper blade, can make it be close to hierarchical jar of body 1 inside wall gradually, progressively to remaining impurity clearance on hierarchical jar of body 1, when guaranteeing hierarchical jar of body 1's high-efficient use, can avoid once only clearing up the inefficiency that brings again, the poor problem of effect.

The working principle is as follows: after a driving motor 11 is started, the driving motor 11 can drive a grading wheel to rotate, materials move to a grading area from a raw material inlet 5 at the lower end of the grading machine at a high speed along with ascending air flow under the action of draught of a fan, under the action of strong centrifugal force generated by the grading wheel rotating at the high speed, the thick and thin materials are separated, fine particles meeting the particle size requirement enter a cyclone separator or a dust collector through blade gaps of the grading wheel and are collected, after being collided with walls, the coarse particles are subjected to speed loss after being carried with part of the fine particles, and then descend to a secondary air inlet 3 along a cylinder wall, the coarse particles are separated through strong elutriation of secondary air, the fine particles ascend to the grading area for secondary grading and are discharged from a fine powder outlet 4, and the coarse particles descend to a coarse powder outlet 2, in the process, when a driving shaft of the driving motor 11 rotates, the driving gear 10 can be driven to rotate, the driving shaft 14 is driven to rotate through the meshing action of the driving gear 10 and the driving gear 13, in the rotating process of the transmission shaft 14, a sliding plate 7 can only move up and down along the center line of the transmission shaft 14 without following the center line of the transmission shaft 14, and can simultaneously realize that a scraper plate 14 rotates to clean residual impurities on a tank body 6, and further realize the coarse powder outlet, thereby the coarse powder outlet, and further realizing the stability of the coarse powder.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an air classifier, includes the hierarchical jar body (1), the tip is equipped with middlings export (2) under the hierarchical jar body (1), middlings export (2) top is equipped with raw materials entry (5) and overgrate air import (3), hierarchical jar body (1) upper end is equipped with by driving motor (11) driven classification wheel, inside the fine powder export (4), its characterized in that are located to the classification wheel: the utility model discloses a grading tank body, including hierarchical jar body (1), filter screen (12), driving gear (13) have been cup jointed to the fixed driven gear (13) that has cup jointed in filter screen (12) middle part, be equipped with driving gear (10) on driving motor (11) output shaft, driving gear (10) and driven gear (13) intermeshing, there are sliding plate (7) end under driving shaft (14) through threaded connection, sliding plate (7) and filter screen (12) looks remote site personally submit the annular and evenly are equipped with guide bar (8), sliding plate (7) below is equipped with deflector (15), sliding connection has scraper blade (6) on deflector (15), scraper blade (6) are squarely locates the sliding plate (7) outside.

2. An air classifier as claimed in claim 1, wherein: the driven gear (13) is arranged below the grading wheel, and the center line of the driven gear (13) is collinear with the center of the grading tank body (1).

3. An air classifier as claimed in claim 1, wherein: the guide plate (15) is annularly arranged on the outer side of the transmission shaft (14), and the number of the guide plate (15) is equal to that of the scrapers (6).

4. An air classifier as claimed in claim 1, wherein: a guide groove (9) is formed in the guide plate (15), and the scraper (6) is movably connected into the guide groove (9).

5. An air classifier as claimed in claim 1, wherein: the guide plate (15) is arranged below the sliding plate (7), and the guide plate (15) and the sliding plate (7) are parallel to each other.

6. An air classifier as claimed in claim 1, wherein: the guide rod (8) is parallel to the transmission shaft (14), and the guide rod (8) is annularly arranged on the outer side of the transmission shaft (14).

7. An air classifier as claimed in claim 1, wherein: the sliding plate (7) and the guide plate (15) are arranged below the filter screen (12), and the outer diameter of the filter screen (12) is larger than that of the sliding plate (7).

8. An air classifier as claimed in claim 1, wherein: the sliding plates (7) are in contact with the scrapers (6), and the adjacent scrapers (6) are arranged on the outer sides of the sliding plates (7).