CN215823597U

CN215823597U - Novel fine screen swinging screen

Info

Publication number: CN215823597U
Application number: CN202121797389.9U
Authority: CN
Inventors: 史世浩; 孟海涛; 贺三三
Original assignee: Xinxiang Weiliang Screening Machinery Co ltd
Current assignee: Xinxiang Weiliang Screening Machinery Co ltd
Priority date: 2021-08-03
Filing date: 2021-08-03
Publication date: 2022-02-15
Anticipated expiration: 2031-08-03

Abstract

The utility model relates to the technical field of novel swing sieves, in particular to a novel swing sieve for a fine sieve, which comprises a driving device and a sieving assembly, wherein the sieving assembly comprises a bottom grid, a lower-layer screen is arranged at the top end of the bottom grid, and a first discharge hole is formed in the side wall of the bottom grid; still include the fine screen check, fine screen check top is equipped with the upper screen cloth, offer the passageway that is used for the material to fall into the fine screen check on the upper screen cloth, be equipped with second discharge gate and third discharge gate on the fine screen check, fixedly connected with material collecting plate on the inner wall of fine screen check forms the structure that the material falls on the material collecting plate under the centrifugal action and gets into the third discharge gate, still includes the upper cover, the feed inlet has been seted up on covering, solves the problem that the independent equipment of rocking screen among the prior art can not improve the screening precision under the prerequisite of guaranteeing the energy production, has good prospect in novel rocking screen technical field.

Description

Novel fine screen swinging screen

Technical Field

The utility model relates to the technical field of novel swing sieves, in particular to a novel swing sieve of a fine sieve.

Background

The swing screen has the advantages of high screening precision and high screening efficiency, can effectively simulate the limited principle of manual screening movement, conforms to all fine and superfine powder and particle materials, and is particularly suitable for materials which are difficult to process. The problem that the productivity cannot meet the requirement is often solved if the productivity of a single device of the swing sieve in the prior art cannot be improved and the precision is improved, and two devices are often adopted for improving the screening precision on the premise of ensuring the production capacity, but the cost is too high.

Disclosure of Invention

Aiming at the situation, in order to overcome the defects of the prior art, the utility model provides a novel fine-screening swing screen, which solves the problem that the screening precision of the swing screen in the prior art cannot be improved on the premise of ensuring the production capacity by one single device.

The technical scheme is as follows:

a novel fine-screening swing screen comprises a driving device and a screening assembly, wherein the screening assembly comprises a bottom grid, a lower-layer screen for screening materials is arranged at the top end of the bottom grid, and a first discharge hole for discharging the screened materials is formed in the side wall of the bottom grid; the fine screening device is characterized by further comprising a fine screening grid arranged above the bottom grid, an upper layer screen used for screening materials is arranged at the top end of the fine screening grid, a channel used for enabling the materials to fall into the fine screening grid is formed in the upper layer screen, a second discharge hole used for discharging the materials which are not screened is formed in the side wall of one end, close to the lower layer screen, of the fine screening grid, a third discharge hole used for discharging the materials which are screened is formed in the side wall of one end, close to the upper layer screen, of the fine screening grid, a material collecting plate is fixedly connected to the inner wall of the fine screening grid, a structure that the materials which are screened fall onto the material collecting plate and enter the third discharge hole under the centrifugal action is formed, and a gap used for the materials which are not screened to pass through is reserved between the material collecting plate and the inner wall of the fine screening grid; the fine screen is characterized by further comprising an upper cover arranged above the fine screen grid, and the upper cover is provided with a feeding hole.

Preferably, the mesh number of the upper layer screen and the lower layer screen is the same.

Preferably, the inner wall of the fine screen lattice is fixedly connected with a material guide channel for guiding unscreened materials falling from the channel to the center of the lower-layer screen mesh, and the guide channel is communicated with the channel.

Preferably, a ball supporting plate is arranged below the upper-layer screen, a leakage hole is formed in the ball supporting plate, a bouncing ball used for increasing the vibration frequency of the screen is arranged in a gap between the upper-layer screen and the ball supporting plate, and the diameter of the bouncing ball is larger than the size of the leakage hole in the ball supporting plate.

The utility model has the beneficial effects that:

after being fed through a feed inlet on an upper cover, materials are firstly accumulated at the center of an upper-layer screen, primary fine screening is carried out, undersize materials fall on a material collecting plate, and the undersize materials are discharged to the outside from a third discharge outlet under the centrifugal action; the unscreened material moves to the upper screen cloth edge under centrifugal action, falls into the passageway to through the center department that the direction passageway falls in lower floor's screen cloth, carry out the fine screen of the same precision of second time, for the undersize material discharges to the external world through the second discharge gate under centrifugal action, the undersize material discharges to the external world through first discharge gate, improves the screening precision under the prerequisite of a three-dimensional independent equipment assurance productivity.

Drawings

FIG. 1 is a block diagram of the present invention.

Wherein: bottom grid 1, first discharge gate 11, lower floor's screen cloth 2, fine screen grid 3, second discharge gate 31, third discharge gate 32, upper screen 4, passageway 5, upper cover 7, feed inlet 71, material collecting plate 8, direction passageway 9.

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.

The utility model provides a novel sieve that sways of fine screen, includes drive arrangement and screening subassembly, and drive arrangement is located screening subassembly below, drives screening subassembly and makes rotary motion.

The screening subassembly generally sets up to circular, including end check 1, end check 1 is the drum structure, end check 1 top is equipped with the lower floor's screen cloth 2 that is used for screening the material, be equipped with the first discharge gate 11 that is used for the undersize material ejection of compact on the lateral wall of end check 1, first discharge gate 11 is tangent with end check 1 bottom, and the undersize material of being convenient for is followed the ejection of compact of first discharge gate 11.

Still including placing the fine screen check 3 in end check 1 top, fine screen check 3 are the drum structure, fine screen check 3 top is equipped with upper screen 4 that is used for screening the material, the edge that is close to fine screen check 3 inner wall on upper screen 4 offers the passageway 5 that is used for the material to fall into fine screen check 3, and the material is at upper screen 4 back of sieving, and the material that does not sift down moves to upper screen 4 edge under the centrifugal action, falls into in passageway 5, and the further screening is carried out on falling lower floor's screen cloth 2 through passageway 5.

The fine screen 3 is equipped with the second discharge gate 31 that is used for the ejection of compact of material under the screen cloth 2 of lower floor on being close to the lateral wall of the one end of lower floor's screen cloth 2, second discharge gate 31 is tangent with lower floor's screen cloth 2, the ejection of compact of material under the screen cloth of being convenient for. After being screened by the lower screen 2, the unscreened materials are discharged through the second discharge port 31 and discharged to the outside.

Fine screen check 3 are equipped with the third discharge gate 32 that is used for the undersize material ejection of compact on the lateral wall of the one end that is close to upper screen 4, the welding has material collecting plate 8 on the inner wall of fine screen check 3, forms the undersize material and falls on material collecting plate 8 and get into the structure of third discharge gate 32 under centrifugal action, leave the space that is used for the undersize material to pass through between the inner wall of material collecting plate 8 and fine screen check 3.

The fine screen device further comprises an upper cover 7 placed above the fine screen 3, and a feeding hole 71 is formed in the upper cover 7. The edge of the upper cover 7 is provided with a circle of peripheral side wall used for containing materials in a downward extending mode, so that space is increased for material accumulation, and blockage caused by accumulation of large materials is prevented.

The outer wall of the bottom lattice 1 is provided with a screw rod used for compressing the screening assembly, and the outer wall of the upper cover 7 is welded with a buckle matched with the screw rod for use.

During the installation, at first install lower floor's screen cloth 2 on end check 1 top, then place fine screen check 3 in end check 1 top, lower floor's screen cloth 2 is located between end check 1 and fine screen check 3, installs upper screen cloth 4 on fine screen check 3 top again, and upper cover 7 is placed in fine screen check 3 top, and upper screen cloth 4 is located between fine screen check 3 and upper cover 7, utilizes the lead screw to compress tightly end check 1, fine screen check 3, upper cover 7 at last.

In order to improve the screening precision on the premise of ensuring the productivity, the mesh number of the upper-layer screen mesh 4 is the same as that of the lower-layer screen mesh 2. The material falls on the upper screen 4 through the feed port 71 to be subjected to primary fine screening, and the unscreened material falls on the lower screen 2 through the channel 5 to be subjected to the primary fine screening with the same precision.

In the above or some embodiments, a material guide channel 9 for guiding unscreened material falling from the channel 5 to the center of the lower screen 2 is welded and connected to the inner wall of the fine screen 3, and the guide channel 9 is communicated with the channel 5. The material falls in the center of the lower screen 2, and gradually spreads out around under the centrifugal action, so that the screening effect is better.

In the above or some embodiments, a ball support plate 41 is arranged below the upper screen 4, a leak hole is arranged on the ball support plate 41, a bouncing ball 42 for increasing the vibration frequency of the screen is arranged in a gap between the upper screen 4 and the ball support plate 41, and the diameter of the bouncing ball 42 is larger than the size of the leak hole on the ball support plate 41. Similarly, a ball supporting plate 41 is arranged below the lower screen 2, a leakage hole is formed in the ball supporting plate 41, a bouncing ball 42 for increasing the vibration frequency of the screen is arranged in a gap between the upper screen 4 and the ball supporting plate 41, and the diameter of the bouncing ball 42 is larger than the size of the leakage hole in the ball supporting plate 41.

The working principle of the utility model is as follows:

after being fed through a feeding hole 71 on the upper cover 7, materials are firstly accumulated at the center of the upper-layer screen mesh 4, primary fine screening is carried out, the screened materials fall on the material collecting plate 8, and the materials are discharged to the outside from the third discharging hole 32 under the centrifugal action; the unscreened material moves to the edge of the upper screen 4 under the centrifugal action, falls into the channel 5, falls into the center of the lower screen 2 through the guide channel 9, and is subjected to fine screening with the same precision for the second time, and is discharged to the outside through the second discharge hole 31 under the centrifugal action, and the undersize material is discharged to the outside through the first discharge hole 11.

The present invention has been described in detail with reference to the specific embodiments and examples, but these are not intended to limit the present invention. Many variations and modifications may be made by one of ordinary skill in the art without departing from the principles of the present invention, which should also be considered as within the scope of the present invention.

Claims

1. The utility model provides a novel rocking sieve of fine screen, includes drive arrangement and screening subassembly, its characterized in that:

the screening component comprises a bottom grid (1), a lower-layer screen (2) for screening materials is arranged at the top end of the bottom grid (1), and a first discharge hole (11) for discharging the screened materials is formed in the side wall of the bottom grid (1); also comprises a fine screen grid (3) arranged above the bottom grid (1), an upper layer screen (4) used for screening materials is arranged at the top end of the fine screen grid (3), the upper layer screen (4) is provided with a channel (5) for the material to fall into the fine screen grid (3), a second discharge hole (31) for discharging unscreened materials is arranged on the side wall of one end of the fine sieve lattice (3) close to the lower layer screen (2), a third discharge hole (32) for discharging undersize materials is arranged on the side wall of one end of the fine sieve lattice (3) close to the upper layer screen (4), the inner wall of the fine screen grid (3) is fixedly connected with a material collecting plate (8) to form a structure that the materials under the screen fall on the material collecting plate (8) and enter a third discharge hole (32) under the centrifugal action, a gap for passing unscreened materials is reserved between the material collecting plate (8) and the inner wall of the fine screen grid (3); the fine screen is characterized by further comprising an upper cover (7) placed above the fine screen grids (3), and a feeding hole (71) is formed in the upper cover (7).

2. The novel fine screen rocking screen of claim 1, characterized in that:

the mesh number of the upper layer screen (4) is the same as that of the lower layer screen (2).

3. The novel fine screen rocking screen of claim 1, characterized in that:

the inner wall of the fine screen grid (3) is fixedly connected with a material guide channel (9) which is used for guiding unscreened materials falling from the channel (5) to the center of the lower-layer screen (2), and the guide channel (9) is communicated with the channel (5).

4. The novel fine screen rocking screen of claim 1, characterized in that:

the ball supporting plate is characterized in that ball supporting plates (41) are arranged below the upper-layer screen (4) and the lower-layer screen (2), leak holes are formed in the ball supporting plates (41), bouncing balls (42) used for increasing the vibration frequency of the screen are arranged in gaps between the upper-layer screen (4) and the ball supporting plates (41), and the diameters of the bouncing balls (42) are larger than the sizes of the leak holes in the ball supporting plates (41).