CN216500550U

CN216500550U - Multi-stage grain screening equipment

Info

Publication number: CN216500550U
Application number: CN202122659891.XU
Authority: CN
Inventors: 刘传取; 刘宇
Original assignee: Anhui Xingang Agricultural Science And Technology Development Co ltd
Current assignee: Anhui Xingang Agricultural Science And Technology Development Co ltd
Priority date: 2021-11-02
Filing date: 2021-11-02
Publication date: 2022-05-13
Anticipated expiration: 2031-11-02

Abstract

The utility model discloses grain multistage screening equipment which comprises a screening machine case, wherein a screening cylinder for screening grains in a grading manner is rotatably arranged in the screening machine case, a fine material filtering area, a medium material filtering area and a coarse material filtering area are axially arranged on the screening cylinder, a feed hopper is fixedly arranged on the screening machine case, a discharge end of the feed hopper extends into the screening cylinder and is fixedly provided with a transversely arranged discharge cylinder, fixed scraping plates for reducing grain blockage are symmetrically arranged at the bottom of the discharge cylinder, a movable pushing mechanism for assisting grain screening is arranged in the screening cylinder, and discharge pipes corresponding to the fine material filtering area, the medium material filtering area and the coarse material filtering area are respectively arranged at the bottom of the screening machine case. The utility model has the advantage of high screening efficiency.

Description

Multi-stage grain screening equipment

Technical Field

The utility model relates to the technical field of grain screening, in particular to grain multistage screening equipment.

Background

The screening equipment is one kind of equipment used in grain processing, and through proper technological process and proper operation method, the screening equipment removes the scraps and inferior-quality products in grain to raise the quality of grain.

The screening installation for the existing grain processing has the advantages of simple structure and single function, when the grain is screened in multiple stages, the screen cloth needs to be replaced, the screening efficiency is lower, the condition that the screen cloth is blocked by the grain can often occur, and the material discharge is influenced. Therefore, we propose a multi-stage screening device for grains.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide grain multistage screening equipment which has the advantage of high screening efficiency and solves the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a multistage screening installation of grain, includes the sieve separator machine case, the sieve separator machine incasement portion rotates installs the filter cylinder that is used for the classified screening grain, be provided with thin material filtering area along the axial on the filter cylinder, well material filtering area and coarse fodder filtering area, the fixed feeder hopper that is provided with on the sieve separator machine case, the discharge end of feeder hopper extends to the inside of filter cylinder just is fixed with the row's of horizontal setting expects a section of thick bamboo, row's of material bobbin base portion symmetry is provided with and is used for reducing the obstructed surely flitch of scraping of grain, the inside pushing equipment who is provided with mobilizable grain screening of assisting of filter cylinder, sieve separator machine bottom of the case portion install respectively with thin material filtering area well material filtering area with row's material pipe that coarse fodder filtering area corresponds.

Preferably, pushing equipment scrapes the flitch including moving, move the radian of scraping the flitch and sieve tube internal face radian adaptation, it is fixed with the straight-bar to move in the middle of scraping the flitch top, the straight-bar top extends to the inside of arranging the material section of thick bamboo, and stretches into end fixedly connected with internal thread sleeve pipe.

Preferably, the bottom of the discharging cylinder is axially provided with a limiting channel through which the straight rod passes.

Preferably, a screw rod is fixed at the axis of the inner wall of the screening cylinder, and one end of the screw rod extends into the discharging cylinder and is in threaded connection with the internal thread sleeve.

Preferably, the rotation of the screening drum is driven by a motor, and the motor is fixedly installed at one end of the outer part of the screening machine case.

Preferably, the inner walls of the screening machine cases under the fine material filtering area, the medium material filtering area and the coarse material filtering area are respectively provided with a collecting area, the discharging pipes are respectively positioned at the bottom of the screening machine case under the collecting areas, and the inner walls of the screening machine cases between the adjacent collecting areas are fixed with baffles.

Preferably, the fine material filtering area, the medium material filtering area and the coarse material filtering area are all provided with filtering holes, the medium material filtering area is located in the middle of the screening cylinder, the fine material filtering area is close to the feeding hopper, the aperture of the filtering holes in the coarse material filtering area is larger than that of the filtering holes in the medium material filtering area, and the aperture of the filtering holes in the medium material filtering area is larger than that of the filtering holes in the fine material filtering area.

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

according to the utility model, the screening drum is rotatably arranged in the screening machine case, the fine material filtering area, the medium material filtering area and the coarse material filtering area are axially arranged on the screening drum, grains can be classified and screened according to different particle sizes, the fixed scraping plate is arranged on the inner wall surface of the screening drum to scrape, the grains are prevented from being blocked in the filtering holes, so that the discharging is smoother, the material pushing mechanism is arranged, the grains trapped in the screening drum can quickly enter the corresponding collecting area on the screening machine case through the proper filtering holes, and the screening efficiency is improved.

Drawings

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

FIG. 2 is a schematic structural view of a screen cylinder according to the present invention;

fig. 3 is a schematic cross-sectional structure of a screen cylinder and a discharge cylinder according to the present invention.

In the figure: 1. a screening machine cabinet; 101. a baffle plate; 2. a screening cylinder; 201. a fines filtration zone; 202. a medium material filtering area; 203. a coarse material filtering area; 3. a discharge cylinder; 301. a limiting channel; 4. a fixed scraper plate; 5. a motor; 6. a screw rod; 7. an internally threaded sleeve; 8. a straight rod; 9. a movable scraper plate; 10. a discharge pipe; 11. a feed hopper.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 1 to 3, the present invention provides a technical solution: a grain multistage screening device comprises a screening machine case 1, a screening cylinder 2 for screening grains in a grading manner is rotatably arranged in the screening machine case 1, a fine material filtering area 201, a middle material filtering area 202 and a coarse material filtering area 203 are axially arranged on the screening cylinder 2, a feed hopper 11 is fixedly arranged on the screening machine case 1, the discharge end of the feed hopper 11 extends into the screening cylinder 2 and is fixedly provided with a transversely arranged discharge cylinder 3, one end of the screening cylinder 2 is provided with a through hole for the discharge cylinder 3 to pass through, fixed scraping plates 4 for reducing grain blockage are symmetrically arranged at the bottom of the discharge cylinder 3, the screening cylinder 2 rotates, the fixed scraping plates 4 are kept still, grains blocked in the screening cylinder 2 can be scraped, smoother discharge is facilitated, a material pushing mechanism for assisting grain screening is arranged in the screening cylinder 2, and can reciprocate along the direction of a rotating shaft of the screening cylinder 2, in an initial state, the pushing mechanism is located on one side of the fine material filtering area 201 far away from the medium material filtering area 202, and the bottom of the screening machine case 1 is respectively provided with a discharging pipe 10 corresponding to the fine material filtering area 201, the medium material filtering area 202 and the coarse material filtering area 203.

Pushing equipment scrapes flitch 9 including moving, move the radian of

scraping flitch

9 and 2 internal face radian adaptations of cartridge filter, it is fixed with straight-bar 8 to move in the middle of scraping flitch 9 top, the inside of straight-bar 8 top extension to row silo filter 3, and stretch into end fixed connection and have interior threaded sleeve pipe 7, arrange silo filter 3 bottom and offer the spacing channel 301 that supplies straight-bar 8 to pass through along the axial, enter into the inside rice of row silo filter 3 through feeder hopper 11, can be through spacing channel 301 fall the position that is close to feeder hopper 11 in the cartridge filter 2 downwards, 2 inner wall axle center departments of cartridge filter are fixed with

lead screw

6, 6 one end of lead screw extend to the inside of arranging silo filter 3 and with interior threaded sleeve pipe 7 threaded connection.

The rotation of screening cylinder 2 is driven by motor 5, and motor 5 is fixedly installed at one end of the outside of screening machine case 1.

During operation, the motor 5 is started to drive the screening cylinder 2 to rotate, when the screening cylinder 2 rotates, the screw rod 6 rotates along with the motor, the internal thread sleeve 7 linearly reciprocates along the screw rod 6 under the limiting effect of the limiting channel 301, and the straight rod 8 drives the scraping plate 9 to push materials.

The inner walls of the screening machine cases 1 under the fine material filtering area 201, the medium material filtering area 202 and the coarse material filtering area 203 are respectively provided with a collecting area, the discharging pipes 10 are respectively positioned at the bottom of the screening machine case 1 under the collecting area, the inner wall of the screening machine case 1 between the adjacent collecting areas is fixed with a baffle 101, and the baffle 101 is arranged, so that different collecting areas are separated, and rice is prevented from being mixed.

The fine material filtering area 201, the medium material filtering area 202 and the coarse material filtering area 203 are all provided with filtering holes, the medium material filtering area 202 is positioned in the middle of the screening cylinder 2, the fine material filtering area 201 is close to the feeding hopper 11, the aperture of the filtering holes on the coarse material filtering area 203 is larger than that of the filtering holes on the medium material filtering area 202, and the aperture of the filtering holes on the medium material filtering area 202 is larger than that of the filtering holes on the fine material filtering area 201.

When the rice screening machine is used, external grains such as rice enter the discharging barrel 3 through the feed hopper 11 and then enter the screening barrel 2 through the limiting channel 301, the motor 5 is started to drive the screening barrel 2 to rotate, so that the rice in the screening barrel 2 is screened out through the filtering holes, the screening barrel 2 rotates, the fixed scraping plate 4 scrapes on the inner wall surface of the screening barrel 2 to prevent the rice from being blocked in the filtering holes, the screw rod 6 also rotates along with the rotation of the screening barrel 2 to enable the internal thread sleeve 7 to linearly reciprocate along the screw rod 6 by matching with the limiting function of the limiting channel 301 when the screening barrel 2 rotates, so that the straight rod 8 drives the movable scraping plate 9 to push materials, the middle material filtering area 202 is positioned in the middle of the screening barrel 2, the fine material filtering area 201 is close to the feed hopper 11, the rice entering the discharging barrel 3 through the feed hopper 11 directly falls to the inner bottom of the screening barrel 2 on the fine material filtering area 201 through the limiting channel 301, move scraping flitch 9 and push away when pushing away the material, can promote rice towards well material filtering area 202, in this in-process, the rice grain piece in the rice drops downwards through the filtration pore of crossing on the fine material filtering area 201, broken rice in the rice drops downwards through the filtration pore of crossing on the well material filtering area 202, the rice continues to be promoted towards coarse fodder filtering area 203 by the full rice of granule of holding back on well material filtering area 202, then the full rice of granule drops downwards through the filtration pore of crossing on the coarse fodder filtering area 203, fall into the rice in different collecting regions through filtering the pore, discharge through row material pipe 10 respectively at last.

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 utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a grain multistage screening installation, includes sieve separator machine case (1), its characterized in that: a screening drum (2) for screening grains in a grading way is rotatably arranged in the screening machine case (1), a fine material filtering area (201), a medium material filtering area (202) and a coarse material filtering area (203) are axially arranged on the screening cylinder (2), a feed hopper (11) is fixedly arranged on the screening machine case (1), the discharge end of the feed hopper (11) extends into the screening cylinder (2) and is fixedly provided with a transversely arranged discharge cylinder (3), the bottom of the discharge cylinder (3) is symmetrically provided with a fixed scraper plate (4) for reducing grain blockage, a movable material pushing mechanism used for assisting grain screening is arranged in the screening cylinder (2), the bottom of the screening machine case (1) is respectively provided with a discharging pipe (10) corresponding to the fine material filtering area (201), the medium material filtering area (202) and the coarse material filtering area (203).

2. The grain multistage screening apparatus of claim 1, wherein: pushing equipment scrapes flitch (9) including moving, move the radian of scraping flitch (9) and screen cylinder (2) internal face radian adaptation, it is fixed with straight-bar (8) to move in the middle of scraping flitch (9) top, straight-bar (8) top extends to arrange the inside of silo (3), and stretch into end fixedly connected with female thread sleeve pipe (7).

3. The grain multistage screening apparatus of claim 2, wherein: the bottom of the discharging cylinder (3) is provided with a limiting channel (301) for the straight rod (8) to pass through along the axial direction.

4. The grain multistage screening apparatus of claim 2, wherein: the screening cylinder (2) is characterized in that a lead screw (6) is fixed at the axis of the inner wall of the screening cylinder, one end of the lead screw (6) extends to the interior of the discharging cylinder (3) and is in threaded connection with the internal thread sleeve (7).

5. The grain multistage screening apparatus of claim 2, wherein: the rotation of screening cylinder (2) is driven through motor (5), motor (5) fixed mounting be in the outside one end of sieve separator machine case (1).

6. The grain multistage screening apparatus of claim 1, wherein: the screening machine is characterized in that the inner walls of the screening machine case (1) under the fine material filtering area (201), the medium material filtering area (202) and the coarse material filtering area (203) are respectively provided with a collecting area, the discharging pipes (10) are respectively positioned at the bottom of the screening machine case (1) under the collecting area, and the inner walls of the screening machine cases (1) between the adjacent collecting areas are fixedly provided with baffles (101).

7. The grain multistage screening apparatus of claim 1, wherein: the fine material filtering area (201), the medium material filtering area (202) and the coarse material filtering area (203) are all provided with filtering holes, the medium material filtering area (202) is positioned in the middle of the screening drum (2), the fine material filtering area (201) is close to the feed hopper (11), the aperture of the filtering holes in the coarse material filtering area (203) is larger than that of the filtering holes in the medium material filtering area (202), and the aperture of the filtering holes in the medium material filtering area (202) is larger than that of the filtering holes in the fine material filtering area (201).