CN117654891A

CN117654891A - Sieve plate

Info

Publication number: CN117654891A
Application number: CN202311748649.7A
Authority: CN
Inventors: 胡金良
Original assignee: China Shenhua Energy Co Ltd
Current assignee: China Shenhua Energy Co Ltd
Priority date: 2023-12-15
Filing date: 2023-12-15
Publication date: 2024-03-08

Abstract

The invention provides a screen plate, which comprises: the main body frame is provided with a plurality of sieve pore parts which are arranged at intervals; the cantilever structure is arranged in the sieve pore part and protrudes inwards from the sieve pore part; the cantilever structures are provided with a first end close to the sieve pore part and a second end far away from the sieve pore part, a plurality of cantilever structures are arranged along the circumferential direction of the sieve pore part at intervals, and the second ends of the cantilever structures are arranged at intervals to form a circulation gap. By adopting the technical scheme provided by the invention, the technical problem of low aperture ratio of the sieve plate in the prior art can be solved.

Description

Sieve plate

Technical Field

The invention relates to the technical field of sieve plates, in particular to a sieve plate.

Background

Currently, in the fields of mining, chemical industry, agriculture and the like, a sieve plate is generally required to sieve materials. The screen plate is typically provided with a plurality of openings through which the screen plate may block out material that does not meet the accuracy and allow material that meets the criteria to pass.

However, in the prior art, because the aperture ratio of the screen surface of the screen plate is low, when the screen plate screens the wet materials, the fine materials are easy to paste and block the screen surface and block the screen holes, and meanwhile, the fine materials are easy to be bonded into clusters and are difficult to loose, so that the screening efficiency is low, the screen plate is difficult to clean, and the subsequent production operation and the quality of the final product are influenced.

Disclosure of Invention

The invention mainly aims to provide a sieve plate to solve the technical problem of low aperture ratio of the sieve plate in the prior art.

In order to achieve the above object, according to an aspect of the present invention, there is provided a screen panel comprising:

the main body frame is provided with a plurality of sieve pore parts which are arranged at intervals;

the cantilever structure is arranged in the sieve pore part and protrudes inwards from the sieve pore part;

the cantilever structures are provided with a first end close to the sieve pore part and a second end far away from the sieve pore part, a plurality of cantilever structures are arranged along the circumferential direction of the sieve pore part at intervals, and the second ends of the cantilever structures are arranged at intervals to form a circulation gap.

Further, the cantilever structure includes:

the first cantilever extends along a first preset direction;

the second cantilever is arranged at intervals with the first cantilever, extends along a second preset direction, and is arranged at a preset angle with the first preset direction.

Further, the main body frame includes:

a partition frame body on which a plurality of mesh portions are provided;

the first separating ribs and the second separating ribs are arranged in the separating frame body, and at least two first separating ribs are connected with at least two second separating ribs to form a plurality of sieve pore portions in the separating frame body.

Further, along a first preset direction, the main body frame comprises a first screening frame and a second screening frame, the first screening frame and the second screening frame are both provided with a plurality of sieve mesh portions, and the screening precision of the first screening frame is greater than that of the second screening frame.

Further, along the first preset direction, the length of the first screening frame is A, the length of the second screening frame is B, and A is more than or equal to 1:1 and less than or equal to 2:1.

Further, a plurality of first cantilevers and a plurality of second cantilevers are arranged in any one of the plurality of sieve pore parts of the first sieving frame, any one of the plurality of second cantilevers is arranged between any two of the plurality of first cantilevers, and first ends of the plurality of first cantilevers and first ends of the plurality of second cantilevers are arranged at intervals;

the second end of any one of the first cantilevers is spaced from the second end of any one of the second cantilevers, so that a first screening space is formed in the screen hole portion.

Further, along the first preset direction, the distance between the first ends of any two first cantilevers is l ₁ The distance between the second end of any one of the first cantilevers and the second end of any one of the second cantilevers is l ₂ The method comprises the steps of carrying out a first treatment on the surface of the Along the second preset direction, the distance between the first ends of any two second cantilevers is l ₃ ；

Wherein 1:1 is less than or equal to l ₁ :l ₂ The ratio of the components is less than or equal to 1:2; and/or the number of the groups of groups,

1:1≤l ₁ :l ₃ the ratio of the components is less than or equal to 1:2; and/or the number of the groups of groups,

1:1≤l ₂ :l ₃ ≤1:2。

further, at least two first cantilevers are arranged in any one of the plurality of sieve pore parts of the second sieving frame, the at least two first cantilevers are arranged oppositely, and second ends of the at least two first cantilevers are arranged at intervals.

Further, along the first preset direction, the length of the sieve hole part is L, and the distance between the second ends of the at least two first cantilevers is L ₄ ，1:3≤l ₄ :L≤1:2。

Further, a plurality of separation frames are arranged in a connecting way, and any two adjacent separation frames are detachably arranged; and/or the number of the groups of groups,

the main body frame and the cantilever structure are of an integrated structure; and/or the number of the groups of groups,

the main body frame is made of elastic materials; and/or the number of the groups of groups,

the cantilever structure is made of an elastic material.

By adopting the technical scheme of the invention, the cantilever structure is arranged on the main body frame of the sieve plate, smaller circulation gaps can be formed in the sieve pore parts respectively, and the aperture ratio of the sieve plate can be increased through the circulation gaps, so that the sieving probability of materials can be improved, and the technical problem of low aperture ratio of the sieve plate in the prior art is solved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:

fig. 1 shows a schematic structural view of a first screening frame provided according to an embodiment of the present invention;

fig. 2 shows a schematic structural view of a second screening frame provided according to an embodiment of the present invention;

fig. 3 shows a schematic view of the overall structure of a screening deck provided according to an embodiment of the present invention.

Wherein the above figures include the following reference numerals:

10. a main body frame; 11. a sieve hole part; 111. a first screening aperture; 112. a second screening aperture; 113. a third screening hole; 114. fourth screening holes; 12. a partition frame; 13. a first separator rib; 14. second separating ribs; 15. a first screening frame; 16. a second screening frame;

20. a cantilever structure; 21. a first cantilever; 22. and a second cantilever.

Detailed Description

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The invention will be described in detail below with reference to the drawings in connection with embodiments.

Referring to fig. 1 to 3, in an embodiment of the present invention, there is provided a screening deck comprising a main body frame 10 and a cantilever structure 20. The main body frame 10 is provided with a plurality of mesh portions 11 provided at intervals. The cantilever structure 20 is disposed in the mesh portion 11, and the cantilever structure 20 protrudes into the mesh portion 11. The cantilever structures 20 have a first end close to the mesh portion 11 and a second end far from the mesh portion 11, and a plurality of cantilever structures 20 are arranged along the circumferential direction of the mesh portion 11 at intervals, and the second ends of the cantilever structures 20 are arranged at intervals to form a circulation gap.

Adopt the technical scheme that this embodiment provided, set up great sieve mesh portion 11 on the main part frame 10 of sieve to separate sieve mesh portion 11 through cantilever structure 20, so, can form less clearance (can understand as also having formed less sieve mesh in sieve mesh portion 11) in sieve mesh portion 11, and because interval sets up between the second end of a plurality of cantilever structure 20, also can form more clearances between a plurality of second ends like this, thereby effectively promote the aperture ratio of sieve and solve the technical problem that the sieve plate aperture ratio is low among the prior art, can improve the sieve probability of material.

In the present embodiment, the cantilever structure 20 includes a first cantilever 21 and a second cantilever 22. The first cantilever 21 extends in a first predetermined direction. The second cantilever 22 is spaced from the first cantilever 21, and the second cantilever 22 extends along a second preset direction, and the second preset direction is set at a preset angle with the first preset direction. With such an arrangement, the first cantilever 21 and the second cantilever 22 in two directions can divide the inside of the mesh portion 11 in different directions and divide the inside of the mesh portion 11 into a plurality of small gaps which are finer, thereby further improving the aperture ratio of the screen plate.

It should be noted that, as shown in fig. 1 to 3, the first preset direction in the present embodiment may be understood as a horizontal direction along the paper surface, and the second preset direction may be understood as a vertical direction along the paper surface.

Specifically, the main body frame 10 includes a partition frame body 12 and a plurality of first partition ribs 13 and a plurality of second partition ribs 14 disposed at a predetermined angle. The plurality of screen hole portions 11 are provided on the partition frame 12, the first partition ribs 13 and the second partition ribs 14 are provided in the partition frame 12, and at least two first partition ribs 13 are connected with at least two second partition ribs 14 to form the plurality of screen hole portions 11 in the partition frame. In the present embodiment, it is understood that the first and second partitioning ribs 13 and 14 are provided in the partitioning frame 12, and the partitioning frame 12 can be divided into a grid of a letter in a field, and the first cantilever 21 and/or the second cantilever 22 are provided in each grid. With such an arrangement, more screen holes can be formed in the partition frame 12 by the partition action of the first partition ribs 13 and the second partition ribs 14, thereby further improving the aperture ratio of the screen plate.

In the present embodiment, the main body frame 10 includes a first screening frame 15 and a second screening frame 16 along a first preset direction, the first screening frame 15 and the second screening frame 16 are each provided with a plurality of screen mesh portions 11, and screening accuracy of the first screening frame 15 is greater than screening accuracy of the second screening frame 16. The screening accuracy in the present embodiment is understood to be the size of the screen holes (screen hole portions 11) on the screen frame, that is, the screen hole size on the first screen frame 15 is smaller than the screen hole size on the second screen frame 16. By adopting the arrangement, the first screening frame 15 and the second screening frame 16 with different screening precision can meet different screening precision requirements in actual work; in addition, when the sieve plate provided in this embodiment is used, the flow direction of the sieve plate is from left to right as shown in fig. 1 to 3, and the arrangement of the screening precision can also effectively filter the material by using the first screening frame 15 with larger screening precision in the initial stage, and when the material is filtered with high precision, the requirement can be met by only needing the second screening frame 16 with smaller screening precision, thereby reducing the production cost of the screening frame with higher manufacturing precision.

Specifically, along the first preset direction, the length of the first screening frame 15 is A, the length of the second screening frame 16 is B, and A is more than or equal to 1:1 and less than or equal to 2:1. By adopting the arrangement, the sieve plate can be ensured to meet the screening requirement of materials through the length ratio.

In the present embodiment, a plurality of first cantilevers 21 and a plurality of second cantilevers 22 are provided in any one of the plurality of mesh portions 11 of the first screening frame 15, and any one of the plurality of second cantilevers 22 is provided between any two of the plurality of first cantilevers 21, with first ends of the plurality of first cantilevers 21 and first ends of the plurality of second cantilevers 22 being spaced apart. The second end of any one of the first cantilevers 21 is spaced from the second end of any one of the second cantilevers 22 so that a first screening space is formed in the screen hole portion 11. In this embodiment, as shown in fig. 1, two first cantilevers 21 and two second cantilevers 22 divide the first screening holes 111 and four second screening holes 112 around the first screening holes 111 in the center of the screen hole 11, and the four second screening holes 112 around the first screening holes 111 together form a first communicating screening space, and such a first communicating screening space can further increase the aperture ratio on the screen plate, and avoid blocking the material by the cantilever structure 20 through the first communicating screening space.

Specifically, the distance between the first ends of any two first cantilevers 21 along the first preset direction is l ₁ The distance between the second end of any one of the first cantilevers 21 and the second end of any one of the second cantilevers 22 is l ₂ The method comprises the steps of carrying out a first treatment on the surface of the Along a second predetermined direction, the distance between the first ends of any two second cantilevers 22 is l ₃ . Wherein 1:1 is less than or equal to l ₁ :l ₂ The ratio of the components is less than or equal to 2:1; and/or 1:1.ltoreq.l ₁ :l ₃ The ratio of the components is less than or equal to 2:1; and/or 1:1.ltoreq.l ₂ :l ₃ The ratio of the components is less than or equal to 2:1. Note that l ₁ And l ₃ I.e. the length of the first screening holes 111 in the first predetermined direction, and l ₂ I.e. the length of the second screening holes 112 in the first and second predetermined direction. By adopting such a configuration, the first screening frame 15 can have high screening accuracy, and the influence on the boring passage due to the excessive screening accuracy of the first screening frame 15 can be avoided.

In this embodiment, at least two first cantilevers 21 are provided in any one of the plurality of mesh portions 11 of the second screening frame 16, the at least two first cantilevers 21 are disposed opposite to each other, and second ends of the at least two first cantilevers 21 are disposed at intervals. As shown in fig. 2, in this embodiment, two first cantilevers 21 are disposed opposite to each other, a third screening hole 113 is formed between the first ends of the two first cantilevers 21, and the two first cantilevers 21 divide the screen hole portion 11 into two rectangular fourth screening holes 114, the third screening holes 113 are communicated with the fourth screening holes 114 and form a second screening space, and by such a configuration, the flow area of the two rectangular fourth screening holes 114 is larger than the flow area of the four second screening holes 112, so that blocking of the material by the cantilever structure 20 can be further avoided, and the screening accuracy can be ensured to some extent.

Specifically, in the first preset direction, the mesh portion 11 has a length L, and the distance between the second ends of the at least two first cantilevers 21 is L ₄ ，1:3≤l ₄ L is less than or equal to 1:2. Note that l ₄ I.e. the length of the fourth screening holes 114. With such arrangement, not only effective screening of the material through the third screening holes 113 can be ensured, but also avoidingThe situation occurs in which the passage of material is affected by the length of the third screening holes 113 being too small.

In the present embodiment, a plurality of partition frames 12 are provided, and a plurality of partition frames 12 are connected to each other, and any two adjacent partition frames 12 are detachably provided. By adopting the arrangement, the screen plate can be assembled in a detachable manner according to the actual screening requirement and the size of the vibrating screen, so that the screening requirement of the screen plate can be better met.

Specifically, the main body frame 10 and the cantilever structure 20 are a unitary structure. By adopting the arrangement, the structural strength of the sieve plate can be ensured, so that the damage of the sieve plate in the process is avoided as much as possible.

Specifically, the body frame 10 is made of an elastic material; alternatively, the cantilever structure 20 is made of an elastic material; still alternatively, the body frame 10 and the cantilever structure 20 are both made of an elastic material. With such a configuration, when the screen plate integrally follows the vibration of the vibrating screen, secondary vibration can be generated on the main body frame 10 and the cantilever structure 20, thereby further preventing clogging of the screen holes, and facilitating loosening and penetration of the wet-stick mass through the screen holes.

In the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects: the cantilever structure 20 separates the sieve pore parts 11 on the main body frame 10, so that the opening rate of the main body frame 10 is improved, the opening rate of the sieve plate is improved, and the technical problem of low opening rate of the sieve plate in the prior art can be solved.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present application unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

In the description of the present application, it should be understood that, where azimuth terms such as "front, rear, upper, lower, left, right", "transverse, vertical, horizontal", and "top, bottom", etc., indicate azimuth or positional relationships generally based on those shown in the drawings, only for convenience of description and simplification of the description, these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present application; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In addition, the terms "first", "second", etc. are used to define the components, and are merely for convenience of distinguishing the corresponding components, and unless otherwise stated, the terms have no special meaning, and thus should not be construed as limiting the scope of the present application.

The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A screen panel, comprising:

a main body frame (10), wherein a plurality of screen hole parts (11) are arranged on the main body frame (10) at intervals;

the cantilever structure (20) is arranged in the sieve pore part (11), and the cantilever structure (20) protrudes into the sieve pore part (11);

the cantilever structures (20) are provided with first ends close to the sieve hole portions (11) and second ends far away from the sieve hole portions (11), a plurality of cantilever structures (20) are arranged at intervals along the circumferential direction of the sieve hole portions (11), and the second ends of the cantilever structures (20) are arranged at intervals to form a circulation gap.

2. Screen deck according to claim 1, characterized in that the cantilever structure (20) comprises:

a first cantilever (21) extending in a first preset direction;

the second cantilever (22) is arranged at intervals with the first cantilever (21), the second cantilever (22) extends along a second preset direction, and the second preset direction and the first preset direction are arranged at preset angles.

3. A screening deck according to claim 2, wherein the main body frame (10) comprises:

a partition frame (12), wherein the plurality of mesh sections (11) are provided on the partition frame (12);

a plurality of first separating ribs (13) and a plurality of second separating ribs (14) that are the angle setting of predetermining, first separating rib (13) with second separating rib (14) set up in separate frame body (12), at least two first separating rib (13) with at least two second separating rib (14) are connected in order to form a plurality of in the separate frame sieve mesh portion (11).

4. A screening deck according to claim 3, wherein said main body frame (10) comprises a first screening frame (15) and a second screening frame (16) in a first predetermined direction, said first screening frame (15) and said second screening frame (16) each being provided with said plurality of screen openings (11), the screening precision of said first screening frame (15) being greater than the screening precision of said second screening frame (16).

5. A screening deck according to claim 4, wherein the first screening frame (15) has a length a and the second screening frame (16) has a length B in a first predetermined direction 1:1. Ltoreq.a: b.ltoreq.2:1.

6. A screen deck according to claim 4, wherein a plurality of said first cantilevers (21) and a plurality of said second cantilevers (22) are provided in any one of said plurality of screen hole portions (11) of said first screening frame (15), any one of said plurality of said second cantilevers (22) being provided between any two of said plurality of said first cantilevers (21), first ends of said plurality of said first cantilevers (21) and first ends of said plurality of said second cantilevers (22) being provided at intervals;

wherein the second end of any one of the first cantilevers (21) is spaced from the second end of any one of the second cantilevers (22) so that a first screening space is formed in the screen hole part (11).

7. A screening deck according to claim 6, wherein the distance between the first ends of any two of said first suspension arms (21) in said first predetermined direction is l ₁ The distance between the second end of any one of the first cantilevers (21) and the second end of any one of the second cantilevers (22) is l ₂ The method comprises the steps of carrying out a first treatment on the surface of the The distance between the first ends of any two second cantilevers (22) along the second preset direction is l ₃ ；

Wherein 1:1 is less than or equal to l ₁ :l ₂ The ratio of the components is less than or equal to 2:1; and/or the number of the groups of groups,

1:1≤l ₁ :l ₃ the ratio of the components is less than or equal to 2:1; and/or the number of the groups of groups,

1:1≤l ₂ :l ₃ ≤2:1。

8. a screening deck according to claim 4, wherein at least two of said first cantilever arms (21) are arranged in any one of said plurality of screening openings (11) of said second screening frame (16), at least two of said first cantilever arms (21) being arranged opposite each other, and at least two of said second ends of said first cantilever arms (21) being arranged at intervals.

9. A screening deck according to claim 8, wherein the screen openings (11) have a length L in the first predetermined direction, the distance between the second ends of at least two of the first suspension arms (21) being L ₄ ，1:3≤l ₄ :L≤1:2。

10. The screen panel of claim 3, wherein the screen panel,

the number of the separation frames (12) is multiple, the separation frames (12) are connected, and any two adjacent separation frames (12) are detachably arranged; and/or the number of the groups of groups,

the main body frame (10) and the cantilever structure (20) are of an integrated structure; and/or the number of the groups of groups,

the main body frame (10) is made of an elastic material; and/or the number of the groups of groups,

the cantilever structure (20) is made of an elastic material.