CN220697390U - Multistage rotary screen - Google Patents

Abstract

The utility model discloses a multi-section rotary screen, and mainly relates to the field of material screening; comprises a frame, a power shaft with high front and low rear is arranged on the frame, the power shaft is in transmission connection with a motor, an auger is arranged on the outer wall of the front end of the power shaft, the outer side of the power shaft is sequentially sleeved with a plurality of annular screens from front to back, the sizes of the mesh holes of the screens are different, and the power shaft is provided with a stirring device which is matched with the screens; the utility model can screen out materials with various sizes, the filtering precision is high, and the work efficiency is high.

Description

Multistage rotary screen

Technical Field

The utility model relates to the field of material screening, in particular to a multi-section rotary screen.

Background

At present, the screening device is widely applied in the feed, grain and fertilizer industries, including vibrating screens, gravity flow screens and drum screens, the vibrating screen body is large, occupies large space, and wastes large space for the same material flow; the gravity flow screen is small in size but low in efficiency, the material is easy to block, and the material sieving function is easy to lose; the rotary screen can limit the material flow rate of incoming materials, the feed inlet can be blocked due to overlarge flow rate, the problem of low filtering precision exists, and the large-particle materials often contain too much small-particle materials.

Disclosure of Invention

The utility model aims to solve the problems in the prior art and provides a multi-section type rotary screen which can screen materials with various sizes, and has high filtering precision and high working efficiency.

The utility model aims to achieve the aim, and the aim is achieved by the following technical scheme:

the utility model provides a multistage drum sieve, includes the frame, be equipped with the low power shaft in front and back in the frame, the power shaft is connected with motor drive, be equipped with the auger on the outer wall of the front end of power shaft, the outside of power shaft is from the front to the cover in proper order be equipped with a plurality of annular screen cloth, and the difference the mesh size of screen cloth is different, be equipped with the kickoff that suits with the screen cloth on the power shaft.

Preferably, a feeding cylinder is arranged at the front end of the frame, and the auger is positioned at the inner side of the feeding cylinder.

Preferably, the meshes of a plurality of the screens sequentially become larger from front to back.

Preferably, a blanking port is arranged on the lower side of each screen, and the blanking ports are fixed on the frame.

Preferably, the material stirring device comprises a material stirring frame fixed on the power shaft, and a plurality of material stirring tiles are arranged on the material stirring frame in an annular array.

Preferably, a brush is arranged on one side of the bottom of the screen.

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

the auger rotation of the utility model can increase the material flow velocity of the feed inlet, has the functions of preventing blocking, and improves the filtering capacity of the rotary screen to a certain extent; the stirring mechanism rotates along with the power shaft, so that the contact area of the material and the screen can be increased, the filtering speed and the filtering precision are improved, and the content of small particle materials in the large particle materials is reduced; through setting up the screen cloth of different mesh sizes, can select the material of multiple size from preceding back in proper order.

Drawings

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

FIG. 2 is a schematic diagram of a configuration of a kick-out stand;

fig. 3 is a side view of a kick-out stand.

The reference numbers in the drawings: 1. a frame; 2. a power shaft; 3. a motor; 4. an auger; 5. a screen; 6. a feed cylinder; 7. a blanking port; 8. a kick-out frame; 81. a material stirring tile; 9. a brush.

Detailed Description

The utility model will be further illustrated with reference to specific examples. It is to be understood that these examples are illustrative of the present utility model and are not intended to limit the scope of the present utility model. Further, it will be understood that various changes or modifications may be made by those skilled in the art after reading the teachings of the utility model, and such equivalents are intended to fall within the scope of the utility model as defined herein.

Examples: as shown in figures 1-3, the utility model discloses a multi-section rotary screen, which comprises a frame 1, wherein the frame 1 can be formed by welding square pipes and channel steel, a power shaft 2 with high front and low rear is obliquely arranged on the frame 1, and the power shaft 2 and a motor 3 are driven by a belt to drive the power shaft 2 to rotate through the motor 3.

The outer wall of the front end of the power shaft 2 is welded with a packing auger 4 with a certain length, the packing auger is used as a feeding packing auger, a plurality of annular screens 5 are sequentially sleeved on the outer side of the power shaft 2 from front to back, supports are welded on the inner walls of the screens 5, one ends of the supports, far away from the screens 5, are welded on the power shaft 2, and the sizes of mesh holes of the screens 5 are different.

Preferably, the front end of the frame 1 is provided with a feeding barrel 6, the feeding barrel 6 is welded at the front end of the screen 5 at the forefront end, the auger 4 is positioned at the inner side of the feeding barrel 6, and the front end of the feeding barrel 6 is used as a feeding port.

Preferably, the meshes of the plurality of screens 5 are sequentially enlarged from front to back, in this embodiment, three screens 3 are adopted as an example of a three-section rotary screen, and the three screens 3 are sequentially welded into a whole from front to back, and are sequentially a small-particle screen, a large-particle screen and a large-impurity crushing screen from front to back.

Preferably, in order to collect the material conveniently, the underside of each screen 5 is provided with a blanking port 7, the blanking ports 7 are welded on the frame 1, when in use, the granules with different particle diameters are contacted with the rotating screen 5, and leak to the corresponding blanking ports 7 from the corresponding screen 5, and the quantity, the type and the specification of the screen are related to actual demands.

The material stirring device which is matched with the screen 5 is arranged on the power shaft 2, and the material stirring mechanism rotates along with the power shaft, so that the contact area between the material and the screen can be increased, the filtering speed and the filtering precision are improved, and the content of small-particle materials in large-particle materials is reduced.

Preferably, in order to avoid small-size material to get into the screen cloth of rear side, the stirring device includes fixing the stirring frame 8 on power shaft 2, and the juncture of two adjacent screen cloth 5 equipartitions is a stirring frame 8, stirring frame 8 be with the plectane that suits with the internal diameter of screen cloth 5, and be equipped with the arc breach at stirring frame 8's edge, the material that does not accord with the screening requirement gets into next screen cloth 5 through the arc breach, stirring frame 8 is gone up annular array and is equipped with a plurality of stirring tile 81, stirring tile 81's transversal personally submits the arc, corresponds the welding with the arc breach, stirring frame 8 can block the material and get into next screen cloth 5, guarantees the time of material in screen cloth 5, can reduce the content of granule material in big granule material, guarantees the screening effect.

Preferably, a brush 9 is arranged at one side of the bottom of the screen 5, and the brush 9 is fixed on the frame 1 through screws and is used for cleaning accumulated materials on the screen 5.

Claims (6)

1. The utility model provides a multistage drum sieve, includes frame (1), be equipped with high back low power shaft (2) in front on frame (1), power shaft (2) are connected its characterized in that with motor (3) transmission: the automatic feeding device is characterized in that an auger (4) is arranged on the outer wall of the front end of the power shaft (2), a plurality of annular screens (5) are sequentially sleeved on the outer side of the power shaft (2) from front to back, the sizes of mesh holes of the screens (5) are different, and a stirring device which is matched with the screens (5) is arranged on the power shaft (2).

2. A multi-section trommel as claimed in claim 1 wherein: the front end of the frame (1) is provided with a feeding cylinder (6), and the auger (4) is positioned at the inner side of the feeding cylinder (6).

3. A multi-section trommel as claimed in claim 1 wherein: the meshes of the plurality of screens (5) are sequentially enlarged from front to back.

4. A multi-section trommel as claimed in claim 1 wherein: and blanking ports (7) are formed in the lower sides of the screens (5), and the blanking ports (7) are fixed on the frame (1).

5. A multi-section trommel as claimed in claim 1 wherein: the material stirring device comprises a material stirring frame (8) fixed on the power shaft (2), and a plurality of material stirring tiles (81) are arranged on the material stirring frame (8) in a ring-shaped array.

6. A multi-section trommel as claimed in claim 1 wherein: one side of the bottom of the screen (5) is provided with a brush (9).